In my case the battery has been stable after the update. I’m getting around 5 minutes per 1% with my normal usage. I didn’t configure anything manually — the apps were optimised automatically after the update.
However, I did notice one change. When I play the temperature now goes up to around 38°C, whereas before the update it used to stay around 35°C during the same gameplay.
So battery performance seems fine for me, but there is a small increase in temperature while gaming after the update. Not sure if others are seeing the same.