Stallman was right about a number of free and open source software things, although he is a disgusting person for his comments around the Jeffery Epstien situation and his views on minors...
I suggest that you search and read the actual things he said in the "stallman report". Not the summaries from the author.
I love stalman and these blatant bullying tactics with obvious lies and bullshit meant to have an emotional reaction short circuit any actual rational read. The stalman controversy is the text book example of bullying an autistic person with semantics. Seen the same shit since grade school.