You cant layer ffmpeg, you need to override-remove everything libav and then install everything new from rpmfusion. I did that, its a mess.

If you just want video playback thats just libavcodec-freeworld, thats why I specifically mentioned ffmpeg.

I am not a fan of Distrobox for small tools. For sure possible but unnecessary and the workflow is a pain. And trust me, I use it daily and even ran libvirt in a rootful one, virt-manager in a rootless one, connected over ssh.

There’s at least Fedora atomic with nvidia https://github.com/ublue-os/nvidia

My point was that Fedoras product is unusable. Ublue is the solution, their main images are basically Fedora Atomic but fixed.

that should depend on the file manager, right?

No thats libavcodec-freeworld and ffmpegthumbs. Most movies you find on the open sea are not in libre Codecs.