I have done this repair a few times on dells. It sucks but doable. This was during covid and we had huge delays on getting new devices, so was taking parts from diffrent computers to make a working one. All mine worked fine, I’m good with mechanical things, but Practice stopped when coworker tried it and put long screws where short ones go and the case now has very noticeable bumps next to the mouse pad.

Also shocking how NO ONE knew how to change thermal paste on a 5 year old laptops or why they were all thermal throttling. Corporate waste is real.