I like the adaptive charging feature that Samsung introduced with One UI 6.1: For battery protection, the phone learns your sleep patterns and when charging overnight, it stops at 80% and then resumes like ~1h before your estimated wake time. So your phone should be fully charged when you wake up, while not causing battery damage.
However, this could be improved: Today I had an alarm set for 7am and my phone was still charging at 92%. (No big deal, but if my alarm would have been for 6am, I assume it would have been in the 80% range) Apparently, the phone had estimated a later wake up time based on earlier sleep patterns. This could be improved by making adaptive charging take a set alarm in the (early) morning into account and adjust charging accordingly.
Cheers!
