I have updated just some hours back , no issue still noticed, battery drain was normal , but the 480p switching when playing 4k video on YouTube isn't solved. Also after update it'll first heat up , give it some time (use for two hours on that condition) and reboot, the phone will optimised to mormal. Also a small useful tip, try to install update in a cool place so that no green line or pink line arrives (i have placed it to refrigerator😂😂)
