For the record, I found a new video about the game and the guy claims the framerate is unlocked:
External Content www.youtube.comContent embedded from external sources will not be displayed without your consent.Through the activation of external content, you agree that personal data may be transferred to third party platforms. We have provided more information on this in our privacy policy.If that is the case I will buy it right away.
Oh hey that's my video! Yea the game does indeed run uncapped on the Switch 2 and overall just a much more enjoyable experience, haven't had the game crash once since playing on Switch 2, it's night and day compared to the Switch 1 version, which is still a great experience as is, especially for how impressive this game is to be running on the Switch 1, but yes I can't recommend this game enough for the Switch 2. I really hope we get a designated Switch 2 upgrade at some point and some of the extra stuff from the PC version like the A350, I'd even be happy to buy the game again and support the devs if it came to it. Love this sim.