When i change the scale in manjaro Kde wayland, also the resolution change

here the 2 images problem with scaling - Album on Imgur
when i change the scale because otherwise everything is too small, the resolution goes down and everything became pixelated (the resolution is way too low).
I use manjaro kde with wayland

inxi -Fx

System:    Host: lorenzo-lenovo-flex-5-amd Kernel: 5.10.52-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 
           Desktop: KDE Plasma 5.22.3 Distro: Manjaro Linux base: Arch Linux 
Machine:   Type: Convertible System: LENOVO product: 82HU v: IdeaPad Flex 5 14ALC05 serial: <superuser required> 
           Mobo: LENOVO model: LNVNB161216 v: SDK0R32866 WIN serial: <superuser required> UEFI: LENOVO v: GJCN19WW 
           date: 02/23/2021 
Battery:   ID-1: BAT0 charge: 31.7 Wh (59.6%) condition: 53.2/52.6 Wh (101.0%) volts: 11.9 min: 11.5 model: Sunwoda L19D3PD6 
           status: Unknown 
CPU:       Info: Quad Core model: AMD Ryzen 3 5300U with Radeon Graphics bits: 64 type: MT MCP arch: Zen 2 rev: 1 cache: 
           L2: 2 MiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 41539 
           Speed: 1570 MHz min/max: 1400/2600 MHz boost: enabled Core speeds (MHz): 1: 1570 2: 1616 3: 2270 4: 2520 5: 2066 
           6: 2374 7: 2143 8: 1917 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Lucienne vendor: Lenovo driver: amdgpu v: kernel bus-ID: 04:00.0 
           Device-2: Acer Integrated Camera type: USB driver: uvcvideo bus-ID: 1-4:2 
           Display: wayland server: X.Org compositor: kwin_wayland driver: loaded: amdgpu,ati unloaded: modesetting 
           s-res: 1920x1080 
           OpenGL: renderer: AMD RENOIR (DRM 3.40.0 5.10.52-1-MANJARO LLVM 12.0.1) v: 4.6 Mesa 21.1.5 direct render: Yes 
Audio:     Device-1: Advanced Micro Devices [AMD/ATI] driver: snd_hda_intel v: kernel bus-ID: 04:00.1 
           Device-2: Advanced Micro Devices [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor vendor: Lenovo driver: N/A 
           bus-ID: 04:00.5 
           Device-3: Advanced Micro Devices [AMD] Family 17h HD Audio vendor: Lenovo driver: snd_hda_intel v: kernel 
           bus-ID: 04:00.6 
           Sound Server-1: ALSA v: k5.10.52-1-MANJARO running: yes 
           Sound Server-2: JACK v: 0.125.0 running: no 
           Sound Server-3: PulseAudio v: 14.2 running: yes 
           Sound Server-4: PipeWire v: 0.3.32 running: yes 
Network:   Device-1: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel bus-ID: 02:00.0 
           IF: wlp2s0 state: up mac: c0:3c:59:b9:b8:e2 
Bluetooth: Device-1: Intel AX200 Bluetooth type: USB driver: btusb v: 0.8 bus-ID: 3-4:3 
           Report: rfkill ID: hci0 rfk-id: 3 state: down bt-service: enabled,running rfk-block: hardware: no software: yes 
           address: see --recommends 
Drives:    Local Storage: total: 238.47 GiB used: 12.62 GiB (5.3%) 
           ID-1: /dev/nvme0n1 vendor: Samsung model: MZALQ256HBJD-00BL2 size: 238.47 GiB temp: 27.9 C 
Partition: ID-1: / size: 107.86 GiB used: 12.6 GiB (11.7%) fs: ext4 dev: /dev/nvme0n1p5 
           ID-2: /boot/efi size: 256 MiB used: 28.6 MiB (11.2%) fs: vfat dev: /dev/nvme0n1p1 
Swap:      Alert: No swap data was found. 
Sensors:   System Temperatures: cpu: 43.9 C mobo: 42.0 C 
           Fan Speeds (RPM): N/A 
Info:      Processes: 256 Uptime: 48m Memory: 7.2 GiB used: 4.51 GiB (62.6%) Init: systemd Compilers: gcc: 11.1.0 
           Packages: 1134 Shell: Bash v: 5.1.8 inxi: 3.3.06