@iDJ bro, 85% is the recommended limit to replace battery. If you can use the battery within 25% to 85%, that is never allow it to drain to zero and never allow to full charge 100%, then your battery will thank you and you will get least degradation of battery in the long run.
One of my EV with just the LeadAcid battery is running for 30th month now without any issue. This type of Battery life in Lead Acid EV is almost an achievement. The beauty is the same 25% to 85% formula.
I think in OneUI 4.0 (Samsung's Android 12), there is a setting to NOT charge the phone above 85% level.