flatpak should be newer than apt, correct if wrong.
I first installed FFmpeg extension with extra codecs from flatpak, executed a ffmpeg command that returned: command not found.
I then thought the flatpak package, as the name states, is an extension that needs the apt version to be installed to work, so I executed sudo apt install ffmpeg and after downloading, the command worked.
Should I get rid of flatpak’s ffmpeg? Am I gaining functions with this package?
ffmpeg -version
returns
ffmpeg version 7.1.1-1+b1 Copyright (c) 2000-2025 the FFmpeg developers built with gcc 14 (Debian 14.2.0-19)
Other parts of your system very likely require the apt ffmpeg. Keep it, or at least note the packages that apt wants to uninstall because they depend on ffmpeg