My sound stopped working?

[nikgnomic]

@Yochanan

you’ve given us nothing to go on

What information do you think would be helpful for this?

I would usually ask for more information, but post #2 seemed to be trying for a Hail Mary solution

OP must have rebooted to check hardware is working in Windows

“I did nothing” cannot be true unless videos were autoplaying. comment suggests that something happened inadvertently to mute audio

Previous posts from OP reported issues with VLC so current issue is possibly with audio from web browser

OP posted inxi data for system in May

@Edward78

Audio:
  Device-1: NVIDIA GA104 High Definition Audio vendor: eVga.com.
    driver: snd_hda_intel v: kernel pcie: gen: 4 speed: 16 GT/s lanes: 16
    bus-ID: 05:00.1 chip-ID: 10de:228b class-ID: 0403
  Device-2: AMD Starship/Matisse HD Audio vendor: Gigabyte
    driver: snd_hda_intel v: kernel pcie: gen: 4 speed: 16 GT/s lanes: 16
    bus-ID: 07:00.4 chip-ID: 1022:1487 class-ID: 0403
  Device-3: Realtek LG Monitor HP MIC driver: hid-generic,usbhid type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-2.4:6
    chip-ID: 0bda:4027 class-ID: 0300 serial: 200901010001
  API: ALSA v: k6.6.30-2-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: JACK v: 1.9.22 status: off tools: N/A
  Server-2: PipeWire v: 1.0.5 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    tools: pactl,pw-cat,pw-cli,wpctl

Bluetooth:
  Device-1: Realtek Bluetooth Radio driver: btusb v: 0.8 type: USB rev: 1.0
    speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-8:3 chip-ID: 0bda:0852
    class-ID: e001 serial: 00e04c000001
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends

Realtek ALC1220 is unlikely to have any problem to suspect an issue in ALSA