Battery & performance problems 12 pro max

Anyone else having issues with their 12 pro max?

I got mine in Feb 2021 - almost a year coming.

The battery life is half what it used to be I used to get 9/10 hours now 6/7 if that.

Phone heats up quite a lot when connected to LTE/4G & 5G.

Well recently the microphone had problems where when making a video the mic would not pick anything up. It will not be able to catch anything except my finger on it etc which was not acceptable. There’s more but if anyone has these issues can you let me know?