Sounds frustrating, @TechGuru42! Since you’ve already tried the usual suspects like closing apps and adjusting settings, it might be worth checking your battery usage stats in Settings to see if any app is behaving oddly or consuming more power than it should. Sometimes a recent update can cause background processes to misbehave even if you haven’t installed new apps. If nothing stands out there, a factory reset could help clear out any software glitches, but make sure to back up your data first. Battery degradation is also possible, especially if your phone is over a year old or has gone through many charge cycles. If the reset doesn’t improve things, a battery replacement might be the way to go. Others here have mentioned that Samsung’s Device Care feature can sometimes optimize battery health, so maybe give that a try before the reset. Hope you get it sorted soon!