I've had my Steam Deck for a year, and what I've done since I got it is simply install the RetroArch flatpak (via the Discover app), and use that as a front end for all my emulation.<p>It doesn't add emulated games to the menu, but frankly, I think I prefer it that way, and I don't have to worry about things contaminating future SteamOS updates - everything is silo'd away.<p>It works great, I recommend it.