My code is on GitHub as is a large number of other peoples. They can try to compile it themselves with all the profiling and probes they want, on their own machines.
Here's a long list of questions Russ Cox was interested in - notice how many of them would really want something like “what is your CI configuration?”, and consider that while they could sample GitHub Actions configuration that doesn't tell them anything about the much more varied set of projects who don't use that service:
Most of these things are in the category of bug prioritization. Why don't you... you know... talk to users?
If you want some statistics (oh sorry, histograms), maybe pull down the gigabytes and gigabytes of Go code residing on public repositories and places like GitHub and analyze all that. That'll tell you a ton about how people structure their projects, what architectures they target, etc.