The keyword to look for is “Telemetry”, either here on discourse or on the Pkg.jl repo. Be warned, it’s a somewhat controversial topic.
The TL;DR is (and I hope it’s correct) - there were plans, there is some very limited telemetry, it’s complicated. The page to check for what you may need is snip though I’m unsure whether that particular page is still up to date, since if I recall correctly, telemetry wasn’t merged after all…
EDIT: I’ve removed the link, since it’s out of date.
There’s also this post about the very limited data that is available, so that’s an avenue to investigate as well.