I have an S23 Ultra phone that I bought 1~ year ago, and recently it has started showing really fast battery drain where it will only last 4 hours or less

When I use an app (like X or TikTok), sometimes the phone will slow down greatly and end up crashing/shutting down, when I try to power it on it will show that I need to charge the phone because it is at 0% (even if it crashes at higher, like for example at 52%) - this would show when I plug the phone in, power on and check the battery information where it shows it stayed constant at 52% anyway

I have already gone through all of the troubleshooting steps and factory resetting my phone.

I'm asking this to know if this is just a battery problem or if it is due to anything else that is faulty?