No, but the go tool/package manager doesn’t necessarily, by default, have to proxy each requested module through Google run servers. It can fetch modules direct

No, but the go tool/package manager doesn’t necessarily, by default, have to proxy each requested module through Google run servers. It can fetch modules directly from the source. That said, I don’t think that the go tool’s current behavior in regards to the module proxy server can be considered as phoning home. The proposed metrics collection however absolutely would be bad phoning home behavior.