Guess I will answer myself 😉
Unfortunately turned out A15 beta got applied after restart so I'm on it now. Overall - feels like downgrade. Noticed FPS drop in MLBB which is the main game I play. It is quite stable for few games after phone restart but if I went to play as usual - use phone and then pop for one or two games - it's shuttering and FPS drops to 40-60 range. Even after restart if I play few games FPS gets worse over time. Time to load launcher after restart is also increased - did any bloatware got added?
Think not much difference for day to day use. I didn't find any of new functionalities useful yet. Perhaps little worse battery life but it's just a feel - I didn't check actual numbers.
To sum it up - not worth at this point. If you are stable enough on current A14 patch version don't upgrade. It isn't as bad as A13->A14 but it definitely feels like a downgrade.
