@steko Thanks!
Oh yes, the manual work for Appimage is difficult on user side.

Unfortunately, projects like Krita became so complex with how they need specific libraries patched and not using the stock Qt of the system. The flatpak/snap or distro packages can't follow anymore project like that (unless devs will maintain the release and beta tester will beta-test them).

I advice what's solid and beta-tested. It's a case per case choice.