They never cared when Windows / Office were basically the vast bulk of their product offerings and income.
It's a method of control that they want, and Windows is a good method of control. They can use anti-monopolistic practices to force you into their ecosystem, even decades after having been convicted of just that. There are Windows Server functions and even 365 admin functions that literally only work in Edge. They have shoved Edge and Copilot into everything because they want your data - browsing and now all your data. They integrate OneDrive into explorer because they want your data.
They don't care about users, even enterprise users, removing that control. They sometimes make it *technically* possible, presumably to avoid another unfair competition lawsuit, but they have no real interest in it whatsoever. Why support PXE booting if you can get an InTune licence out of people? Why support local admins if you can force them to pay for another Microsoft account?
And the thing is: People still fall for it. People still think you "must have" Windows, and a Microsoft account, and Office, to use a computer. Even people on iPad are buying Office. Not because they use even 1% of 1% of the features, but because they have been told its necessary or "easier" (often by people in the industry).
Nothing's changed in terms of tactics since the days when Windows was the monopolistic product that they use to force people in using IE instead of Netscape, etc.
Personally, I now need to be paid to work with Windows, or Office. At home, I'm now entirely Linux again (I previously ran Slackware as a primary desktop for 10 years, ironically while managing Windows networks). In Windows 7 / 8 / 8.1 you had a decent OS and you could coax it to do what you want.
With Windows 11, I have basically warned my employers over the years that... I'm not in control of it any more. If your data ends up in Copilot? Nothing I can do about that. If your browser gets forced back to Edge? Nothing I can do about that. If your system decides to apply Windows Updates at an awkward time? Nothing I can do about that. I used to have controls. They used to work pretty well. But... no longer. No matter what I do this month, next month another update, hidden option or whatever will appear and I have no way to guarantee what that will do and, yes, quite often it'll undo or introduce "new controls" for the above.
You want to use MS, and Windows, and Office, and Teams, and Outlook, and all the other pieces? Then you just have to accept what they give you and deal with the consequences. They are kind of on a mission to remove people like me. They just want everything in the cloud and then they can manage your PCs for you. That's clearly the end-goal here. As such... I have to warn my users and employers that... this option... I can't guarantee it will stay off.
At home, I'm entirely Linux for a reason. It does what I say. There are bits that I still hate about modern Linux (systemd, etc.) but, it does what I say. It doesn't suddenly run off and index the entire network for no reason. It doesn't constantly question my choice of browser. It doesn't try and install a bunch of secret apps behind my back that I can't remove. It couldn't care less what I decide to use to open .docx files. And it doesn't have dumb ideas like wanting to screenshot my PC every few minutes and then run the screenshots through online AI.
I've got RPi's. I've got a Steam Deck. And since Christmas I have a Framework laptop. They all just do what I say. And, do you know... computing is boring again. Things just do what I tell them, and then stay fixed. And the OS is how I like it. I double-click an application and the OS gets the hell out of my way. That's it.
Honestly, I'm done with Windows unless you're compensating me for the sheer hassle of having to deal with it, and then I'll just tell you that there are things I cannot do or can no longer guarantee.
(Typed on a Samsung phone using DeX because again - that's an OS that just gets out of my way).