> spies on you
Enough with this rubbish claim, please. Everyone I've asked to actually substantiate it resorts to angry handwaving. How about you?
The telemetry collects crash and feature usage data, the same as macOS and all of the phone OSes does. You want that on because it tells MS where the bugs are. If you turn it off, you don't get to complain about bugs because MS has no idea you encountered any.