A keyword list from ChatGPT comes from general knowledge and says nothing about how many postings it rests on. A plausible suggestion is not the same as a common one.
A product manager could be told to add Productboard. None of 421 postings names it but roadmap appears in 85,5%. A software engineer could be told to add Angular, Vue or Swift. They appear in 2,9%, 3,2% and 2,3% of 1.360 postings while scalability is at 52,9% and Python at 44,8%. A marketer could be told to add LinkedIn Ads or Meta Ads. They appear in 0,3% and 0,6% of 347 postings, while go-to-market is at 53,0%.
ChatGPT is the better tool for rewriting a bullet. The counts for seven roles (3.518 postings) and the method are on https://resumefitting.com matching is by term, so a missed synonym counts as absent.