In the meantime, I advise you not to reply to messages from those who cannot answer your specific questions. People overwhelmingly don’t want “a discussion” about potentially unpleasant foundational issues. and routinely assume bad faith and ill intent on the part of those who raise them. They can’t be dissuaded, and trying only makes it worse.
You’ll get forthright answers from those who know, or you won’t. Nobody else matters here. Including me (I don’t know the answers to your questions, but do not assume bad faith or ill intent on your part - I agree they’re “reasonable questions”).