MacBook Pro something inside moving very slightly
so I bought my m1 MBP less than 2 weeks ago and yesterday I flipped it so that I could clean the back but I noticed something moving very very slightly keep in mind this doesn't happen when i shake it from side to side but only when shaked back and forth and completely flipped I also know for a matter of fact it is not the keys because i have a keyboard cover that prevents the keys completely from moving and this is very weird because you can't hear or feel this when the MacBook's screen is closed only when the screen is opened. I don't know is that something to worry about or it is the fan with some room