This is exactly what MS tried with Windows and Office in the late 90s. People hated it and MS has since removed this automatic adaption completely. Office menu

This is exactly what MS tried with Windows and Office in the late 90s. People hated it and MS has since removed this automatic adaption completely. Office menus in particular took on a shortened form with only the most used items. You had to explicitly expand them to see the remaining items that Office considered irrelevant to you. This has two major problems: the UI became incomsistemt between users, too dynamic and therefore comfusing. Amd even though users used a particular 1% subset of an Office program today, it would be a different subset the next day or the next week. This sent them constantly hunting for menu items that "should be there". All of this was replaced with the ribbons makeover. Now, the interface is not adapting to the user, but to the current context. Although I don't like that interface very much, it is at least less surprising.