hello mi note 10 i am having a repeated reboot problem, my problem came up while downloading files from telegram. I don't know if it will continue but it's a very annoying situation
I had issues with the previous ROM, but 21.4.1 is OK for me.
Maybe you should try to share a little more information to see why you have this issue, is it a clean installation, did you clear cache, what was your previous ROM, and so on...