Interesting, this is what I'm considering too after exclusively using Android+Windows since forever. The enshittification of Windows is mainly what has changed my mind - worse privacy, UX, forcing users to use online accounts - but also life seems more simple when you only have Apple to consider instead of whatever shenanigans that Microsoft and Google throws at you. Furthermore, the UX of the Apple eco system seems better than anything I've encountered on Android+Windows.
One thing to note is that Apple also tries very hard to get you to log in to their online services when you use your phone or laptop. They're not as overt as MS about requiring it yet, but I would not be surprised if it was coming.
As for UX, I feel like it's hit and miss for me. With the huge caveat that I haven't used Windows 11, Windows beats MacOS in a lot of areas. For example, I prefer older versions of Windows to MacOS for window management, and Explorer is a lot better than Finder in my opinion. Those are two major pieces of the user experience!