I’m running the officlial binary bundle 2.1.49 on Arch Linux. After a recent system upgrade Anki only shows a blank window. I tracked the issue down to the upgrade of glibc from 2.33 to 2.35. With 2.33 and everything else on the newest state it still works.
Just pray and wait. It looks like the Qt6 beta versions seem to work. If you don’t want to upgrade you can use anki --no-sandbox to get it working for now.
There’s a thread for this issue already, Anki window not displaying anything
AH, thanks. --no-sandbox indeed works. Although I get an unexpected dialog saying Please use File>Import to import this file when opening a deck now. But that seems to just be confusing and doesn’t actually hurt.