user migration

We just tested migrating a small batch of test users to our new Azure tenant. While migrating the PC/user account was no problem, the fact that people get a completely blank user profile, certainly was a showstopper!! Many of our users has had their AD profile for years, even a decade and has...

I am wondering, what tool I should use, if I replace one PC with a newer one, to transfer the entire user experience from older system to the newer one. This should include all the app preferences and OS environment customizations to the extent possible. Is there a utility for that? I should...