Comment # 1 on bug 1225791 from Fabian Vogt

A mixture of Mesa from packman and openSUSE repos can cause this, so make sure
it's all coming from one vendor.

If that doesn't help, please report the issue to packman.

> 6月 02 10:35:31 amd-desktop systemd-coredump[9555]: [🡕] Process 9537 (org_kde_powerde) of user 1000 dumped core.

Those are just fallout of kwin exiting and don't provide any info about the
cause. More of the journal is needed for that and ideally the kwin backtrace.