It worked without problems using AppImage for me, but I’m on Ubuntu 22.04.4 that apparently supports AppImages.
Just don’t change your audio driver to one you don’t have on your system(Pipewire in my case) in the Kdenlive settings cause it made Kdenlive confused and crash on exit and then again on relaunch(not able to open preview window or something).
So had to reset to default configuration and that fixed it again.
I thought Kdenlive showed me the audio drivers that were installed on my system but nope 