Regarding flickering disturbances on the screen and videos when using wayland (im japanese im new here my english not good im sorry)

[filo]

Some people had improvements with Nvidia on Wayland adding the kernel boot parameter nvidia-drm.modeset=1.
You can do that with the Garuda Boot Options tool.
But for many this has had no effect at all.
The error message is unrelated in my opinion.
It is probably due to an Electron app (pcloud?) not working correctly, probably in Wayland.
I don’t know if this can help:
https://wiki.archlinux.org/title/Wayland#Electron
Here it seems that something similar helped:

Some of Electron apps are flashing on my PC with NVIDIA graphics card

Can you try with --enable-features=UseOzonePlatform,WaylandWindowDecorations --ozone-platform=wayland See if that changes anything? Hmm looking on the internet this seems a very common issue with not a lot of great solutions save for frustrated people going back to x11. Electron applications do not redraw properly to reflect latest input (reuse old frames) · Issue #187 · NVIDIA/open-gpu-kernel-modules · GitHub

But see also this recent comment:

Information for KDE users - KDE 6 available in Arch repos

I have an NVIDIA gpu and electron based apps are slow an glitchy on wayland, so I have to stick with X11. X11 is usable, but it feels a bit laggy; I’ll wait for more updates that can fix that.