There is a lot to unpack in this one.
Let me just quote this since yes – this is a polarizing issue in general:
This is a common question I hear from founders. They ask me what is standard in this situation. And I tell them that not only is there no standard answer, that this is one of the most emotionally charged issues to come between founders and their investors and boards and companies.
What I usually find surprising is that some founders are shocked there is any notion of founder vesting.
However this post is more about what to do when fully vested which I have no experience with.