Edit: I’m now enlightened and use mpv, I really like the ModernZ OSC (on-screen controls), and uses config files.
IINA is only on macOS. I looked up linux alternatives but none of them seem to have similar looking UIs, at least out of the box. I want the player UI to float on top of the video + with a blurred background, it as shown in the image; or at least the ability to theme it like so.


It’s not blurred, but the UI for Showtime (GNOME Video Player) looks pretty similar with the edge to edge video playback and transparent controls overlay: https://gitlab.gnome.org/GNOME/showtime
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I somehow keep running across videos that won’t load in Clapper, Showtime, mpv, VLC, or Handbrake, and Nautilus won’t show thumbnails for them. It’s very frustrating. Supposedly I’ve already installed all the available codecs from RPMFusion, but still get the “codec missing” error on a bunch of videos.
Jellyfin on the other hand, it plays everything I’ve ever thrown at it. I don’t know what the hell it’s doing differently from the other video players on my system, but it works great.
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Thanks, yeah I think so. At least, I’ve followed all the steps outlined here https://rpmfusion.org/Howto/Multimedia but VLC and gstreamer apps continue to tell me that I’m missing codecs. I am stumped, but happy that at least Jellyfin plays everything.
I think it actually uses GStreamer as a backend which is a bit unfortunate because HDR support is either nonexistent or hit or miss with GStreamer at the moment. I’ve also had worse performance with GST over MPV, but most videos and codecs are fine. It certainly integrates better with the GNOME environment which may have been a driving factor in the decision to use it over MPV.