Almost nothing I use the watch for has been impacted by the latest release. Not one bug fix or enhancement interests me, so, for the most part I'm not observing any new bugs.
That said, one false nap recorded today when I was very much awake. That's not exactly a new bug though, just same ol' same ol'.
Oh, and sleep score is usually depressingly low from Garmin when my Oura Ring 3 and Ringconn rings are typically far more positive and more in line with my own opinion.
I'm on the live release. I have not joined the beta program for the Epix. I learned my lesson as a Fenix 6X owner. But naps are not a new feature. They were there on the Fenix 6 series and I've reported false naps for my 6X and Epix 2 Pro long before 16.22.
