Can having 1 account in two devices cause ban??

My account is linked from Google and Facebook, and my account is logged in Redmi note 9 pro max ( from Google ) and redmi note 8 pro ( from facebook ), can it cause ban? I heard that people are getting banned because BGMI thinks that one's account rank is being pushed by many playersa at once, is it safe? I play with both mobile, 9 pro max has 40 fps, 8 pro is my mother's so when my 9 pro battery is low or it gets heated, I will use 8 pro, is it safe?