GOPROXY is enabled by default. “Since Go 1.13, the go command by default downloads and authenticates modules using the Go module mirror and Go checksum database.” https://proxy.golang.org/
Yes, I 100% would. To any software. The only positive in this case is that Debian is not run by the freaking Google - the overlord of all information on the internet with backdoors for all three letter agencies in USA, despite what Go authors will want you to believe.