- Edited
thrik that really isn't necessary: Battery Management Advice
Official Advice: https://support.google.com/pixelphone/answer/6090612
Realistically using the standard charger to ensure correct voltage delivery at appropriate percentage and keeping the phone away from heat sources means you don't need to worry about the 80% mark and it isn't relevant to modern devices with onboard controllers with charge bypass.
If you wish to discard the advice then you need to ensure the apps you mentioned support direct boot:
https://developer.android.com/training/articles/direct-boot