As someone who's done the whole Helpdesk -> Sysadmin stuff, working around other "Windows Admins" they don't learn much, all they know is "Deleting this thing seemed to fix" "Reboot". They don't get any of the fundamentals of what caused an issue, or how to diagnose them properly.
I spent a lot of my career in the Windows admin space. That isn't true. Most Windows admins are sharp dudes, just like most Linux admins are sharp dudes. And a minority of Windows admins are slackers who don't try to learn, but a minority of Linux admins are slackers who don't try to learn.
Most of my experience with Windows has been googling for solutions rather than understanding the underlying system. So I guess it's a learning experience, but not in learning Windows itself, as much as learning to use search engines.
I do remember common fixes for various things, but not much of it can be extrapolated to other issues in my experience.