Celluloid flatpak fits the screen perfectly, but plays mp4 and MKV in a kind of odd, continually chopped way, like it’s skipping frames at a predesignated rate.
MPV native PureOS app when opened shows only one thing: “Drop files or URLs to play here” with no other controls or any menus at all. Since I can’t really drag a file to it on the L5, well…
I don’t have anything in AV1.