I see what you're saying but that isn't how I think about it.

I'm happy to have as "much" OS as is useful and adds value, convenience, or user experience for me.

Example: I quite like Windows Hello. Facial recognition is the smoothest, most pleasant form of biometric authentication available on a laptop, and it's nice to be able to use it anywhere throughout the whole OS that a password would otherwise be required (e.g. before revealing hidden passwords in a password manager, when opening a command prompt with elevated permissions, or before applying passkeys to log into a website). It starts up fast, works in low light thanks to IR emitters, and recognizes me pretty close to 100% of the time. It's a great experience. My use of my laptop would only be reduced by having "less OS" in this case.

What I don't want is anything that compromises my utility, convenience, or user experience in order to make the OS useful and valuable for someone else.

Example: advertisements embedded in the Start menu are plenty valuable to M$, but compromise my user experience in the process.

Example 2: Inserting Copilot into Paint and Notepad seem valuable for pumping M$'s stock price, but both annoy me by cramming unwanted AI into my basic utility programs where I have no interest in it.