For some reason MPV/VLC/Mediainfo have been associated to all mimetypes / extensions that were not associated before, how can I massively disassociate and associate them to the corresponding extensions (video n audio)
You can edit or remove the relevant configs to reset the settings:
~/.config/mimeapps.list
~/.local/share/applications/mimeinfo.cache
From Ask Fedora to Project Discussion
Added quality-team and removed audio, f40, kde, wayland, workstation