Debian 11 is a giant shitshow. Floppy controller doesnt works, gimp crashes from copypaste, kpaint lacks icons, pitivi crashes on start, kdenlive crashes, pcmanfm crashes from cutting and pasting...
Are you using KDE ? if so - Do these issues also occur in XFCE ? If like that then I guess it is time to bail from the Debian ecosystem. Debian is just too far behind these days