Assuming that it really is fully anonymized, I wouldn’t consider it “snoopy” as much as adjusting to what needs measuring. The hardware profile stuff was very useful in its own era when the likelihood of a random wifi card, webcam, or GPU working out of box was a gamble and there were a lot fewer OEMs contributing drivers for them, meaning it wasn’t feasible to get to everything right away. Just as the hardware profiling could guide how to target which hardware to focus on, the telemetry could be useful for guiding which software is getting used, which needs attention, which should be replaced etc.
There is something ironic to think about here. Firefox tends to show almost no market share among users in general metrics (though it remains very popular in annual surveys of Fedora users), which is often cited as both an existential threat to Mozilla and as a reason why developers should target Chrome and Safari instead, however, since Firefox users tend to be privacy oriented, they also tend to not only block ads, cookies, trackers, etc., but also opt-out of telemetry in general, which means that Firefox tends to get underreported, so it is quite possible the impact of not supporting Firefox is more significant than many assume at face value.
Opting into telemetry for Fedora, which isn’t going to turn around and sell your information or sell you ads, is a way for you to at some level get a vote on what software is being used and should be invested in. As a trivial example, if everyone that uses Gnome’s built-in Text Editor does so because it’s privacy focused (since there are no trackers) also opts out of telemetry where everyone using VSCode, etc., opts-in, then the maintainers might conclude that the Text Editor should no longer be shipped in Fedora by default, or perhaps shouldn’t be shipped by Fedora at all. There may be quite a few people who use the Gnome Text Editor, but the group that would propose to remove it now has data to back up their claim, where the people upset about it are appealing to individual anecdotes. Conversely, if everyone opted in, it might give some insight as to when someone who normally uses Text Editor opens VSCode instead, and it might inform that Text Editor is generally very useful but could do better at editing YAML, so work is then put towards improving the experience of editing YAML with Text Editor.
I’m not suggesting that everyone needs to opt-in by any means, but please don’t frame it as Red Hat spying on people. There are legitimate reasons to do this. Rather, I see that it’s an opportunity to contribute input back to Fedora so Fedora can use it to make Fedora better for everyone, which is to me, the same kind of usefulness that smolt provided, simply retooled to better fit our current collective needs.