I have now three different video players. Sometimes something glitches and doesn't play anything - no audio or black screen! Then I try another player, and voilà, it works. Maybe it's my Fedora fault? But I don't think so because every app I use is a Flatpak package. For now, the best of all is VLC; it works 99.9% of the time. Showtime looks very clean, similar to Clapper, but what matters most is whether it actually works or not. I don't need another video player that has problems with playing videos. Ideally, I just want only one player.