Gaming is a weird point though, telemetrics are already in heavy use, the privacy risk is indeed minimal, and gamers don't seem to care anyway though. I can't tell you how many GDC talks I've watched that discussed player heatmaps, incident (like death) reports, and whatnot used to fine-tune game balance.

There are numerous places where telemetry is completely inappropriate, like one's operating system. An idle computer should indeed be 100% idle, internal housekeeping exempted. (I recently installed freebsd on a new server, did some setup, and basked in the glory of htop showing 32 cores at 0.0% and a root process list that was under a page long. I wish other operating systems could follow that example)