I mean, non-consensual telemetry is just recording what you do via your camera all day long, but with light off, without telling you. Replace the camera with any app you use.

Are you comfortable and happy now?

Of course it can be useful & good, but letting people know about what you are doing and asking before doing it is even better, no?

Do the telemetry collectors have something to hide, so they do it covertly or without consent?

+1 - I'm one of the few people who actually reads the source code before I build/use software :)

I won't say I've read all of it, of course: the distribution does a lot of work for me [with earned trust]. I'll risk Fedora over BigCo whims any day.