I'm on Graphene too and I once read that the modems used in Pixel phones are pretty trashy and drain a ton of battery. If I filter my battery usage by system, it shows that network standby almost consumes half of my battery charge (~46%).
Maybe the other guy here is right and it's a VPN issue (too)? idk. Anyway, I didn't really found a solution for this except leaving my phone on airplane mode at night.
Pls Rito don't ban the toxic players, keep them in League and Valorant you'e like the SCP foundation or some shit. Don't just release them inters back into the real world I BEG YOU RITO PLESAE