On the help page for ffmpeg that the popup directs me to I was given the impression that I did not need to do anything for ffmpeg?
Linux
If you are using the Flatpak, you should not need to install FFmpeg as it is part of the runtime.
The AppImage builds are currently built against FFmpeg 4.2, as comes with Ubuntu 20.04. You can install a compatible version with one of the following commands, depending on your distro:
Regardless I did confirm that my Ubuntu installation does have ffmpeg.
But I can't seem to use the dump video functionality at the moment.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
ffmpeg is already the newest version (7:6.1.1-3ubuntu5).