Vlc is a great App and there is a flatpak versión in the flathub. I tried it and works very well. Flatpak can be sopported by the most stable distros. Can you make official this vlc flatpak? Here https://github.com/flathub/org.videolan.VLC
Vlc in flathub not update automatically, instead the user must to report Every updating, that is why I request a flatpak versión.
Here some more info
https://flathub.org
https://flatpak.org/setup/
Thanks