I don't think there's a way to manually limit it to 80% within Pixel's settings....

lazycouchpotato on Oct 19, 2023 | parent | context | favorite | on: The iOS option to charge battery to "80% Limit" sh...

I don't think there's a way to manually limit it to 80% within Pixel's settings. If you turn on Adaptive Charging, it'll charge it to 80% overnight and bump it to 100% just before you unplug your phone in the morning.

https://support.google.com/pixelphone/answer/7106961