I’ve tried replacing the fans but the problem is still there, it sounds like a fan rubbing and it gets worse if the laptop gets flexed in some way.
I took it apart to look for the issue, but I can’t see anything, when it is open and upside down it runs quiet, unless you press certain places to make it flex around the fan, which is not unexpected. But I can’t see anything out of place or see what can be fixed.
The laptop is a Dell XPS 15


That’s a good suggestion, I’ll try some kind of temporary bits of padding first to try and work out what is going on. It is a plausible explanation of how the problem appeared, because I can’t see anything wrong