Microsoft will, if not already, run into the same problem with Intel chips that prompted the Apple move. This is that for the past few years there has been little advance in speed with the Intel chips overall. If MS wants to keep up with performance, they will need to look to a newer architecture.
Apple has been able to do this already because they are a smaller, more agile company than MS.
MS is already porting Windows to ARM chips, which is why you can now install Windows onto a Raspberry Pi.
In order to keep up the appearance of a faster OS, MS has tweaked Windows 11 so that it shoves System procedures into the background and User procedures (such as loading and running Word, Outlook, Edge) to the foreground more aggressively than with Win 10. That means you can boot Windows, load Office and get working more quickly than before. However, this sort of trick can only get you so far.
Microsoft will need to look to a new architecture fairly quickly if it doesn't want to get left behind. Whether they go M1, or ARM or something completely different, we will need to wait and see...