Thank you for your time to answer me. I genuinely tried to be respectful and helpful and my usage of a computer program being called unhealthy by a company official on a support forum is a new experience for me. Sorry if I misinterpret your post, English is not my native language.
I was (am) concerned that if there are actions that are not reversed by undo, simply trying some new ideas and then pressing cmd+z like 100 times to undo it, does not put everything back. It’s not that I drag tempo marks very often, but when you press undo n times (I do that very often) you don’t necessarily see that not everything is successfully put back. Then afterwards you save the project again, not knowing that you are also saving deletions that you thought were undone. I’m sorry if I take your response too seriously but this was the reason for this report.