A couple friends and I were playing on the Switch 2, should I submit that as a Switch run or should a Switch 2 category be added? I don't know if there is a console difference.

I added Switch 2 as a platform, so that is selectable now. They're tentatively going to share the leaderboard. I just played on the original Switch and Switch 2 back-to-back and didn't sense any difference, but if it's shown that there is one we can separate them out.