out of curiosity i reinstalled plasma and set it to 150% scaling on wayland and this does not seem to be happening which makes the cause of the bug even more confusing as again it happens on niri and gnome and i do not want to switch back to plasma
concerning update chat: my laptop is using the same distro, kernel version and drivers (mesa 25.1.5) with R7 7738U (AMD Barcelo) and not having this bug am i cooked?
i'm posting this here because i honestly don't know what's responsible for it but i have this bug which is persistent on both gnome and niri (i switched back to gnome because i thought it was a niri bug) when i'm in a fullscreen app and my cursor is visible occasional a duplicate of my cursor will appear in the top left of the window. the conditions aren't very reliable but that's the most consistent factors. sometimes instead of the cursor it just shows a bunch of artifacting but i know it's related to the cursor being visible. the duplicate cursor/artifacting isn't visible in screenshots or pipewire streams. i have a radeon rx 6950 xt on mesa 25.1.5 and vulkan-radeon 25.1.5 i've found similar reports on the mesa git but they have been closed after turning fractional scaling from 150% back to 100% this seems to stop happening but i need fractional scaling to use my computer and this may be a fluke