It's perfectly reasonable to be skeptical of the measures being put in place which would make this possible, especially given MS's history.

To give an analogy, there might have been a time in East Berlin where people could have said: "It's fine that they check papers before crossing into West Germany. Your fears will be reasonable when they no longer permit entry."

Secure Boot is about to become the consumer standard with Windows 11. Popular online games are already starting to require it. I wouldn't be surprised to see Netflix and other streaming services require it.

Keep in mind that this is currently possible only because some governments were looking into persecuting MS for abuse of market power when Secure Boot was standardized.