Belgium here.

Doctor is 5€ or so, but your general doctor can’t do almost anything but prescribe things or refer you, which is enough for most general sicknesses.

Then you have to go to the hospital for a scan or follow up, usually within the same week, or you can go to the emergency room for something like a break and they will see you immediately (of course, like in the US, you will often have to wait an hour or 3 depending on the time of day). Then for all the tests and everything it is usually <100€, for me I have never had more than 50€ but I haven’t had a break where I had to get immediate care.

Specialists take a long time to see otherwise, often months, but from what I hear from friends in the US, the wait time is usually longer there.