You have a Steam Deck- You can emulate a PS1. I have no idea how difficult to set up that would be, as I’ve never cared to play PS1 games myself. For the record, I’d be surprised if you couldn’t emulate a PS3, and RPCS3 is actually the easiest thing imaginable to get set up and working. In my experience the PS2 emulator, PCSX2 is very heavy hardware wise compared to RPCS3 so that might not actually run on a Steam Deck.