Battery Care best practice has always been a subjective topic as people do this differently to what they believe.
I've always charged mine to 100% with no issues.
I don't let my battery drop below 15%
I turn my phone off and charge overnight.
I rarely use fast or super fast charging as this pushes the battery.
Samsungs advice is …
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I have no affiliation with Samsung.