Kwin constantly crashing, how can I solve it?

[Schwarzer Kater]

No there isn't. It was long abandoned by it's dev. Only updates have been automatic translation updates. If Suse is patching it, they are not up streaming their changes. I imagine they patch to aid in building it, without looking, unless they are just pulling the translation changes from kde's GitHub.

Building from.source, as I had been doing for a very long time, started to break for me in both x11 and Wayland, with Intel and AMD graphics, around plasma 5.26, on multiple systems. Well, the 2 that I used. The main bug was panels/docks always on top, covering windows.

I still check it, just in case.

Yes, please do - I am curious.

And concerning Latte Dock from openSUSE : I have no idea what they do, their version is listed with 0.11.something…

I never had this "covering" bug (also not in Kubuntu 22.04 with Plasma 5.24 or Debian 12 with Plasma 5.27 or Debian 11 with backported Plasma 5.24 before - but I have read about it somewhere), everthing is working as intended (AMD iGPU now and Nvidia GPU before)…

[claydoh]

And concerning Latte Dock from openSUSE : I have no idea what they do, their version is listed with 0.11.something…

Which is a git pull from 2022, there hasn't been an 11.x release. Kubuntu and neon only use official releases.

but I have read about it somewhere)

lol probably on reddit or elsewhere, with possible comments on it from yours truly

to the OP, I do think it may be worth testing not using Latte, as a test to see if it may be the culprit. And more info or images of what those message popups are saying.