Yeah not to be obtuse here, but I think the fear is over sensationalized. I haven’t seen it in person, but it seems like this is a totally new product that is similar to idea of browser history, but adds in some modern features. I would like to check it out.
on-by-default
That’s not correct. Based on the documentation, Windows Setup has an option to enable/disable the feature on first boot.
The documentation also says it doesn’t capture incognito windows and I mentioned in my other comment that you can turn it off temporarily and permanently. It doesn’t run all the time no matter what, like some of the comments have suggested.