Flatpak kodi can't use hardware acceleration (...from Debian can)

Actually no I don’t think so. Kodi was my only flatpak video player, but just downloaded Cine and tested- checked HW accel in prefs but playback choppy and high CPU. It’s an older machine but I do seem to get a clear drop in CPU use when HW accell is on vainfo did not show errors during playback though (should it? Or does vainfo just display the system)