The Raspberry Pi 400 or Orange Pi 800 for the lounge

Clara and I are thinking of getting a Raspberry Pi 400 (or 500?) as a lounge computer. Currently we use an Apple TV and a PlayStation 3 [sic] as our media playback devices, but the app(lication) selection is beginning to limit what we can do with them. For example, we also want to move off Plex, and the options for Jellyfin aren’t great. The rational thing would be buy to buy a mini PC of some sort, connect it to the TV, then use a wireless keyboard/trackpad combo to control it. But then, whe...