Has Go's all.bash passed on current FreeBSD systems in a default configuration since Go 1.23 or even earlier? I don't know for sure but I suspect not. I get consistent dial_test failures that far back (and I haven't gone further).
Do I know what's going on? No. Do I want to diagnose this? Also no. And if it's been happening this long, is it useful to report it? Meh, I dunno, and I don't know if Go would accept the report anyway.