Casey LissEveryone probably knew this but me, but you can absolutely pair a Switch 1 Pro Controller with a Switch 2.
You naturally lose out on the chat button and headphone jack, but in terms of gameplay, everything works fine.
Chris@caseyliss For some reason I was thinking they weren’t compatible and bought a new one. Not a huge deal as now I have an extra for couch co-op play with the nephews.