There are so many tips already on the internet .. that's why I mentioned another tip.. however few more that I know for Samsung are - 1. In device care > background usage limits Uncheck put unused apps to sleep If required put apps to sleep manually..
2. Disable Google app if possible..and use less google accounts ..also turn off auto sync if possible..
3. Charge whenever battery goes down to 20% and charge till battery goes to 80% ..however I do charge to 100% once a week.. also if you feel battery is not calibrated then follow method 1 or 2 from this (method 3 is not required now a days)- https://forum.xda-developers.com/t/guide-samsung-battery-calibration.4221355/
