I heard from a “friend” that it runs very well on a Switch emulator on a Steam Deck. Some pre-rendered cutscenes are janky. It has a pretty cool system where you can take a screenshot that will pin to the map to indicate places you need to find back to once you unlock a new ability, and sometimes those don’t render right either. But otherwise, gameplay is flawless. Or so I’ve heard.
I bounced off Perdido twice, then tore through The Scar then went on to read his whole back catalog. It’s my favorite of the Bas Lag “trilogy”.