re: Windows is no longer fit for purpose
That is exactly the conclusion that I came to when W10 was released in 2016. I guessed then that the telemetry was only the tip of the iceberg.
I have a W7 VM that I run perhaps one every three or four months other than that I'm Windows and Microsoft free.
My family and friends are getting increasingly pissed off with the time it takes for updates to be applied. By contract, I powered up an old Mac Mini today that hasn't been on since last August. It runs Alma Linix. The update took 26 minutes to apply. That sort of time is what you expect from most Linux Distros.
Windows is not fit for purpose but... I'd better stop now before I start to rant.