Private mode that doesn't forget your history, but that's protected behind TouchID or FaceID

You know, my only reason for using private mode is because I would feel embarrassed if someone using my laptop would see all the porn sites I’ve visited.

And since that’s my only reason for wanting a private mode, I would actually prefer a private mode that is only accessible when I fill in a password or unlock it with either TouchID or FaceID and then after that I do get all my porn browsing history available to me. The reason I would prefer that is because in the current situation, if I find a video I really like, I can only count on my memory to find it back another time.