ryrona I'm on Wifi pretty much all the time, very light screen time, no games, no social media, mostly using Whatsapp, Telegram and Brave. Spotify and Auxio in the background for music.
I just switched to PixelOS to see if my battery is damaged and not at all, battery is really good in the stock os, I debloated everything that I don't need with Universal Debloat Tool and it's working great. Devs keep saying that battery on GOS should be better than stock, but what I am experiencing this is not the case.
If anyone is having battery issues I would recommend to make the switch untill the issue is fixed. GOS is amazing but the usability in the day to day life is crucial.