This is apparently such a common misunderstanding that it was put at the bottom of the C++ iceberg:

https://victorpoughon.github.io/cppiceberg/

I used godbolt.org dozens of times, and I never bothered to look at "about".

D'Oh.

Sponsoring him on Github right now...

I _think_ so, but this could all be some kind of simulation, I guess? :)