For #GNOME app folks: IMHO we need to think about what to do with Totem / Gnome Videos. It has not yet been ported to #gtk4, which is increasingly becoming an issue.
Apart from not fitting nicely UI wise, it prevents us from using the newly introduced #wayland hardware offloading (zero-copy playback) and, crucially, from (properly) supporting HDR content going forward.
I.e. we either need a port - or should consider making an alternative a core app to focus on.
Short
@rmader I'd love to see Celluloid fill this role. They even have an open RFC for a complete UI overhaul, and it's been a joy for actual production use for years in my experience now: https://github.com/celluloid-player/celluloid/issues/696