My laptop is closed and I noticed I could press down on the top and it goes down, like there is an air bubble between the back and the actual screen. I have no idea if this is normal.
It is an HP laptop, u have no idea what model, but it was my grandmother’s for about 12 years before I got it 2 years ago
If it is that old it’s probably from wear and tear over the years but hard to say for sure without an image