My drain hasn’t been so drastic but it has increased with time.
So I am testing out the battery life after disabling a few features.
Most of my drain is from wifi so I have turned off wifi scanning and auto connect based on location. I will also disable the wifi at night while going to sleep to check the idle drain. Usually it drops by around 3 to 4 percent overnight.
I am also turning off attentive display to see if that makes a difference.
I will post back after trying these things out for a few days.