Just noticed the issue with incorrect time.
1. When it is set to Auto - it could move to different time zone. In my case it suddenly became -3 hrs, though time/zone on my phone was still correct.
2. When it is set to Manual - at some point it has changed to some minutes less than actual time. What the ***?
Nothing even close to that was on previous versions of FW.
Now I seriously in doubt should I use alarm clock on the watch.
Phone: Samsung S23 Ultra, Android 15
Watch: Fenix 8 AMOLED 47