Apparently no one ever taught you how to be respectful of another person. You're obviously from the Trumpster mentality camp where you resort to namecalling when you don't have a clue regarding what you're talking about.
FYI, I was hacking into systems back in the 70's before you were ever even thought about. As far as I'm concerned, you are just another ignorant responder because you have no idea how coding at the lower levels - as in the 1's and 0's - actually works. I do and have for decades.
Try hitting Ctrl+U while viewing the simplest most barren web page you can find and see if you understand and can decipher what you're looking at. I can with ease. In fact, I've been doing it for decades.
A search regarding the problems with Windows 11 proves that it is a awfully slow for an allegedly up to date modern operating system. And, no matter how complaints there are, it's always the users fault. Funny how the major software companies choose to blame the user for problems in the original coding. Sometimes it's something as simple as an undefined term or expression that can cripple a system. The recent Crowdstrike blunder proves that. Had someone actually tested the code before releasing it, it probably could have been avoided. When I was in college, rigorous testing was the challenge because you had to come up with a plethora of scenarios that could occur via the end user. Things like accidental key combinations being pushed or simple user impatience where they start clicking and hitting keys out of frustration.
Google Chrome loads slow. They blame the installed extensions for the muliple executables (chrome.exe in this case) of the same process running. What do you think all those scripts are doing in the background? Why do ads suddenly popup regarding an intentionally bizarre search term when you have all the do not follows you can locate turned on? Because regardless of your personal beliefs, your data is constantly being harvested and transmitted. The software companies claim it's for diagnostic purposes. That's telling a half truth. While some of it is for diagnostic purposes, some of it is for tracking and sharing with partner companies and ad agencies for profit.
Here's a simple test: After insuring that you've turned off ALL trackers, do a search for purple leis or some other unique item. Now, watch how ads for it suddenly appear in your browsers. Notice, the plural intentionally used there. Why? Because the ads will appear in Chrome and Edge even though the original search was done in only one of them. If the trackers were actually all turned off, how come the ads for such an uncommon thing are appearing? Because your preferred settings are being overridden without your knowledge or consent. Those settings are often buried deep in the registry where most common users would never venture out of fear of doing something wrong.
To answer your 'why would they sabotage their own OS' question? Simple. To force you to update to the latest one as they have been doing since Win 8. Look at the original Windows support timeframes as compared to what they have now. MS went from a decade of support to a couple of years tops with Windows 11. Win 11 was released October 5, 2021. The end of life for that release has already passed for both that initial release and the one that followed (21H2 & 22H2). For both end of life was October 8, 2024. Why do you think that is? Here's a hint: $$$.
What's the easiest way a company can force users to upgrade their software? By intentionally making what the user has currently installed appear to have vulnerabilities that aren't going to be fixed in the current version but will be in the newest one. It's simple fear mongering and, thanks to intentionally leaving older versions vulnerable, you force the upgrades. What's better publicity than having the FBI warn users about the security issues from running an OS that is no longer supported? And it didn't cost Microsoft a thing for the FBI to do that on their behalf. That's like the icing on the cake for forcing users to upgrade.
So, it has nothing to do with tinfoil, as you chose to put it. It's about reality and understanding how computer programs are written and how all those words become nothing but 1's & 0's so the electronics can understand it and flip the right switches the right way at the right time. I understand and know how to manipulate those 1's & 0's. Do you?
One more thing, there's a reason harvested data is considered the new cash crop for many industries. How do you think they gather all that data?