This question is likely to be answered with opinions rather than facts and citations. This question has already been asked, and answered. As currently written, the question lacks enough detail or clarity to be answered. Your question is too broad or has multiple parts and needs to be distilled into one. I'm voting to close this question because it has no effort to solve the problem.
Expect a lot of enriched answers like these coming soon from Gemini/bard :-p
How come they get to talk to the customer that way and not me lol
these are literally questions I've given to project managers to help create better requirements but ultimately as a dev you have to come up with "something" regardless and redo the work once the customer complains. Stupid GPTs cutting the line!
The only SO data not yet incorporated into these models is that which was recently created since the model has been trained. It appears more like a "licensing" deal to give something back for scraping all "their" data like everyone else
Expect a lot of enriched answers like these coming soon from Gemini/bard :-p