> port 80 is very much a privileged port that most applications don’t have permission to host on

setcap 'cap_net_bind_service=+ep' /path/to/program

But yes, until like the last 10 years or so. Also while it's possible nobody knows this information.

More interestingly, port 7475 (which is the most popular port besides 80 and 443) is set top boxes watching TV.