I have the same problem with mine. It makes this creaking sound which I noticed in the middle bottom, on the palm rests and sometimes when the hinge opens.
It's unfortunate that I noticed this during quarantine and Apple stores are closed cause now I just have to live with it.
Noticed that this is from 3 years ago though. DID you get it fixed?
This is happening with my mid 2019 MacBook Pro 13" 4tb.