Wifi and tethering not working

In the last weeks I have wifi problems. Somedays the Wifi just doesn’t work. Mostly it doesn’t even show the available wifi connections. Today is the case that it shows them but I cannot connect to my router (says no wifi connection found) nor my mobile hotspot. And also tethering is not working. I connect, but it cannot load any page (the speed is at 0 B/s).
I would like to solve this once for all (if possible).
Here is my inxi -Fazy output:

inxi -Fazy                                                                                           ✔
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "",
        LC_ALL = (unset),
        LC_ADDRESS = "en_US.UTF-8",
        LC_IDENTIFICATION = "en_US.UTF-8",
        LC_MEASUREMENT = "en_US.UTF-8",
        LC_MONETARY = "en_US.UTF-8",
        LC_NAME = "en_US.UTF-8",
        LC_NUMERIC = "en_US.UTF-8",
        LC_PAPER = "en_US.UTF-8",
        LC_TELEPHONE = "en_US.UTF-8",
        LC_TIME = "en_AT.UTF-8",
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_US.UTF-8").
System:
  Kernel: 6.1.19-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 12.2.1
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.1-x86_64
    root=UUID=4f87ccb0-a912-4e0a-8f9d-53d6f1d6aea9 rw quiet
    udev.log_priority=3
  Desktop: KDE Plasma v: 5.26.5 tk: Qt v: 5.15.8 wm: kwin_x11 vt: 1 dm: SDDM
    Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Laptop System: Micro-Star product: Alpha 15 B5EEK v: REV:1.0
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: Micro-Star model: MS-158L v: REV:1.0 serial: <superuser required>
    UEFI: American Megatrends LLC. v: E158LAMS.107 date: 11/10/2021
Battery:
  ID-1: BAT1 charge: 31.3 Wh (40.4%) condition: 77.4/87.4 Wh (88.6%)
    volts: 14.4 min: 15.4 model: MSI Corp. MS-158L type: Li-ion serial: N/A
    status: discharging
CPU:
  Info: model: AMD Ryzen 7 5800H with Radeon Graphics bits: 64 type: MT MCP
    arch: Zen 3 gen: 4 level: v3 note: check built: 2021-22
    process: TSMC n7 (7nm) family: 0x19 (25) model-id: 0x50 (80) stepping: 0
    microcode: 0xA50000C
  Topology: cpus: 1x cores: 8 tpc: 2 threads: 16 smt: enabled cache:
    L1: 512 KiB desc: d-8x32 KiB; i-8x32 KiB L2: 4 MiB desc: 8x512 KiB L3: 16 MiB
    desc: 1x16 MiB
  Speed (MHz): avg: 1449 high: 3200 min/max: 1200/4462 boost: enabled
    scaling: driver: acpi-cpufreq governor: schedutil cores: 1: 1200 2: 3200
    3: 1200 4: 1200 5: 3200 6: 1200 7: 1200 8: 1200 9: 1200 10: 1200 11: 1200
    12: 1197 13: 1200 14: 1200 15: 1200 16: 1200 bogomips: 102244
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
  Vulnerabilities:
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: retbleed status: Not affected
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Retpolines, IBPB: conditional, IBRS_FW,
    STIBP: always-on, RSB filling, PBRSB-eIBRS: Not affected
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: AMD Navi 23 [Radeon RX 6600/6600 XT/6600M] vendor: Micro-Star MSI
    driver: amdgpu v: kernel arch: RDNA-2 code: Navi-2x process: TSMC n7 (7nm)
    built: 2020-22 pcie: gen: 4 speed: 16 GT/s lanes: 16 ports: active: none
    empty: DP-1,HDMI-A-1 bus-ID: 03:00.0 chip-ID: 1002:73ff class-ID: 0380
  Device-2: AMD Cezanne [Radeon Vega Series / Radeon Mobile Series]
    vendor: Micro-Star MSI driver: amdgpu v: kernel arch: GCN-5 code: Vega
    process: GF 14nm built: 2017-20 pcie: gen: 3 speed: 8 GT/s lanes: 16
    link-max: gen: 4 speed: 16 GT/s ports: active: eDP-1 empty: none
    bus-ID: 07:00.0 chip-ID: 1002:1638 class-ID: 0300 temp: 30.0 C
  Display: x11 server: X.Org v: 21.1.7 compositor: kwin_x11 driver: X:
    loaded: amdgpu unloaded: modesetting,radeon alternate: fbdev,vesa
    dri: radeonsi gpu: amdgpu display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.00x11.22")
    s-diag: 582mm (22.93")
  Monitor-1: eDP-1 mapped: eDP model: ChiMei InnoLux 0x1521 built: 2020
    res: 1920x1080 hz: 144 dpi: 142 gamma: 1.2 size: 344x193mm (13.54x7.6")
    diag: 394mm (15.5") ratio: 16:9 modes: max: 1920x1080 min: 640x480
  API: OpenGL v: 4.6 Mesa 22.3.5 renderer: AMD Radeon Graphics (renoir LLVM
    15.0.7 DRM 3.49 6.1.19-1-MANJARO) direct-render: Yes
Audio:
  Device-1: AMD Navi 21/23 HDMI/DP Audio driver: snd_hda_intel v: kernel pcie:
    gen: 4 speed: 16 GT/s lanes: 16 bus-ID: 03:00.1 chip-ID: 1002:ab28
    class-ID: 0403
  Device-2: AMD Renoir Radeon High Definition Audio driver: snd_hda_intel
    v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16 link-max: gen: 4
    speed: 16 GT/s bus-ID: 07:00.1 chip-ID: 1002:1637 class-ID: 0403
  Device-3: AMD ACP/ACP3X/ACP6x Audio Coprocessor vendor: Micro-Star MSI
    driver: snd_rn_pci_acp3x v: kernel
    alternate: snd_pci_acp3x,snd_pci_acp5x,snd_pci_acp6x,snd_acp_pci,snd_rpl_pci_acp6x,snd_pci_ps,snd_sof_amd_renoir,snd_sof_amd_rembrandt
    pcie: gen: 3 speed: 8 GT/s lanes: 16 link-max: gen: 4 speed: 16 GT/s
    bus-ID: 07:00.5 chip-ID: 1022:15e2 class-ID: 0480
  Device-4: AMD Family 17h/19h HD Audio vendor: Micro-Star MSI
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    link-max: gen: 4 speed: 16 GT/s bus-ID: 07:00.6 chip-ID: 1022:15e3
    class-ID: 0403
  Sound API: ALSA v: k6.1.19-1-MANJARO running: yes
  Sound Server-1: JACK v: 1.9.22 running: no
  Sound Server-2: PulseAudio v: 16.1 running: yes
  Sound Server-3: PipeWire v: 0.3.65 running: yes
Network:
  Device-1: MEDIATEK MT7921K Wi-Fi 6E 80MHz driver: mt7921e v: kernel pcie:
    gen: 2 speed: 5 GT/s lanes: 1 bus-ID: 04:00.0 chip-ID: 14c3:0608
    class-ID: 0280
  IF: wlp4s0 state: down mac: <filter>
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Micro-Star MSI driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: f000 bus-ID: 05:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp5s0 state: down mac: <filter>
  IF-ID-1: enp7s0f3u2 state: unknown speed: -1 duplex: half mac: <filter>
Bluetooth:
  Device-1: Samsung Galaxy series misc. (tethering mode) type: USB
    driver: rndis_host v: kernel bus-ID: 1-2:3 chip-ID: 04e8:6863 class-ID: 0a00
    serial: <filter>
  Report: This feature requires one of these tools: hciconfig/bt-adapter
  Device-2: MediaTek Wireless_Device type: USB driver: btusb v: 0.8
    bus-ID: 3-3:2 chip-ID: 0e8d:0608 class-ID: e001 serial: <filter>
  Report: ID: hci0 rfk-id: 0 state: up address: N/A
Drives:
  Local Storage: total: 953.87 GiB used: 444.53 GiB (46.6%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital model: PC SN540
    SDDPNPF-1T00-1032 size: 953.87 GiB block-size: physical: 512 B
    logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
    rev: 33006000 temp: 24.9 C scheme: GPT
Partition:
  ID-1: / raw-size: 953.57 GiB size: 937.53 GiB (98.32%)
    used: 444.53 GiB (47.4%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 312 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 40.8 C mobo: N/A
  Fan Speeds (RPM): N/A
  GPU: device: amdgpu temp: 32.0 C mem: 30.0 C fan: 0 watts: 6.00
    device: amdgpu temp: 31.0 C
Info:
  Processes: 350 Uptime: 2m wakeups: 34 Memory: 15.01 GiB
  used: 1.82 GiB (12.1%) Init: systemd v: 252 default: graphical
  tool: systemctl Compilers: gcc: 12.2.1 clang: 15.0.7 Packages: pm: pacman
  pkgs: 1669 libs: 464 tools: pamac pm: flatpak pkgs: 0 Shell: Zsh v: 5.9
  default: Bash v: 5.1.16 running-in: konsole inxi: 3.3.25

I literally copied the output, created a txt file, uploaded it on my mobile phone and transferred it onto my work PC

Hi @syphracos ,
I wonder whether you have the package linux-firmware installed.

You can also post the following terminal commands, in order to solve the problem:

 sudo journalctl -b -e | grep Network

and

sudo dmesg | grep wifi

Hope this help, regards.