The first "evidence that they may have had the technology to make sewn garments" link [0] looks like some dude ran a model. Now it is certainly possible to claim that as conclusive evidence. But probably only in a debate between historians, I wouldn't bank on it.
50,000 years ago is a long time. There is not a lot of confidence about how things happened, and reality defies mixing generalisation and truth.
[0] https://anthropology.net/2009/06/26/neanderthals-dried-fresh...