snapよりFlatpakのほうが柔軟かもね

# full filesystem access
if you still want to give full filesystem access to every app,
this command will do it:

flatpak --user override --filesystem=host

# Flatpak:
flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

Note that the directories

'/var/lib/flatpak/exports/share'
'/HOME/.local/share/flatpak/exports/share'

とやるとflatpak install --user でinstallations directoryに
~/.local/share/flatpak が選べる

search
-----
flatpak search --columns=name,application,version,branch "mpv"