I’m on KDE too, what distro do you use?

Test it myself too and it seems more smoth there but if you move slowly it also happens but it’s a lot harder to notice indeed!

https://i.imgur.com/sEDyCIC.mp4

Yeah yesterday I tried using a live installation in Gnome and same issue. Seems some deeper thing going on!

yeah that’s not the complain, this happens to all drawing apps. This is some Linux rendering/composer thing going on. That behavior is not normal and it does’t happen on apple and in Windows I couldn’t test yet but I’m sure it doesn’t happen there either.

I’ve tested on different mouse, the touchpad and the steam deck. All do the same behavior.

Exactly. I’ve updated the post with more details.

I’ve tested with touchpad and even on different computers with Linux all behave the same. Even on the Steam Deck.

When zoomed out straight lines look like a staircase. I’ve updated the post with more details.

A mouse but same with touchpad. I’ve updated the post with more details.