If you're using Microsoft in 2026, that's on you. You can't be mad at the lawnmower that cut your foot off, it's just doing what it does.
Now if you proceed with he same horrible lawnmower and cut off your other foot, then that might be on you.
While the analogy is being stretched, same applies here - if Microsoft makes terrible footguns, then that's on Microsoft even if the users should have stopped using Microsoft by now.
Not necessarily. I don't use Microsoft on my personal machines, but my employer forces me to use it at work.
Also - lots of people are used to it and habits die hard, regardless of technical merit etc.