Appimages totally suck, because many developers think they were a real packaging format and support them exclusively.
Their use case is tiny, and in 99% of cases Flatpak is just better.
I could not find a single post or article about all the problems they have, so I wrote this.
This is not about shaming open source contributors. But Appimages are obviously broken, pretty badly maintained, while organizations/companies like Balena, Nextcloud etc. don’t seem to get that.
Have a look at GPU screen recorder, I think thats as much privileges as you need.
XDG-desktop portals are not yet complete. But for filesystem access and GPU de/encoding that should already work.
If the Davinci Resolve devs actually cared about Linux… I think the best way to run it is using uBlues image on Podman.