Hmm does the "Try new outlook" toggle not work for users on an RDS host? When they click it, it says "downloading new outlook" then they get a Switch Now button, which does nothing. (FSLogix used as well, if that matters)

I would say that it depends on policies in the environment. I got it to work eventually with some AppLocker and allow sideloading tricks, which I am a fool and I don't think I documented everything I did...but it should work if allowed to work. Not using FSLogix, but I don't think that would be a show stopper.

Hi Dennis.. as part of my searching on the topic, i did see something that "new outlook" wasnt supported on server 2019, so that could be part of my problem

I had it working briefly on server 2019, then I stopped testing and focus went somewhere else and when I got back to it I never got it working on 2019 again, but do on 2022 for sure. I remember reading that it wasn't supported on 2019 and think that may have been a change in later updates.