TL;DR: Don’t lay this one on me, buddy. You walked in here looking for a fight.
I didn’t much care for the direction you started in. If you wanted an actual discussion, then opening with hostility and claims that could be refuted if you’d bothered with less than a minute of research is the wrong way to go.
If you want a civilized discussion, you have to start with a civilized post. My responses have been no more hostile than your opening salvo.
As it happens, Google’s influence over Mozilla is of massive concern to me. And I agree that the change was not needed. But it’s not obscure, it’s not hard to find out how to do what you wanted to do, and your hostility to responses suggesting DuckDuckGo only confirmed my suspicion that you didn’t want an answer, you wanted a fight.
So I gave you one.
Here’s the deal. If you walk into a place with guns blazing, you don’t get to act all surprised and indignant when someone fires back.
To be fair, Fedora has opt-in telemetry. It’s 100% anonymized, though, and helps with development. I always say yes when I’m running a beta (like now).
That having been said, you should always check the privacy policies of any given distro. They tend to all be pretty up front about it (kinda hard to lie about it when anyone can check your source code…).
AFAIK, though, neither Mint nor Elementary collect telemetry by default, although they might have opt-in like Fedora. Both are based on Ubuntu LTS, but they also both scrape out so much stuff that they’re devoid of most of the Canonical junk.