I have a Linux HTPC on Mint where I have the Pegasus frontend with Jellyfin, VacuumTube, and a bunch of games. The main usability issue is the need to exit each app differently to get back to Pegasus. There’s no notion of using a home button to go back to the home screen and pause the current process, which is what I’d be hoping to get with Bigscreen. Otherwise, Pegasus is fine for launching apps with a remote, and Jellyfin and VacuumTube work fine with a remote as well.