Nord 5 Battery Experience after 5 days!!!!

I'm getting around 11hr SOT , that's from 100-15. I use the power saving mode when the battery does down below 30, Auto for both the refresh rate and screen resolution obviously in the dark mode.

I don't use aod not a big fan of it, prefer rise to wake instead. I don't use camera much, games around 1hr , majority time goes for social media(ig, YouTube etc).

Heats up a little while charging nothing abnormal.

Currently I'm charging upto 100% but I've been hearing a lot about doing so might reduce the battery life. So, should I keep it between 20-80? What's the recommended/ideal way of doing it?

I've calculated my sot from digital wellbeing is it the correct way to do?