Earlier quoted context omitted.
Is OpenBSD actually more secure than Linux? I have not been able to find any data to support this—only some vague opinions.
It's not meaningfully more secure than e.g. Debian. Their claim to fame ("only two remote holes in the default install in X number of years") is definitionally only valid for the default install in its default configuration which means: no httpd, no smtpd, no unbound, etc. etc. etc. The default install isn't very useful, because it doesn't do a lot, and so "only two remote holes" or whatever isn't really saying much.…
Thats not really true. Comes with spamd, pf, httpd, OpenSMTPD and others. Its actually one of the open source unix-like systems that packs more functionality out of the box.
Great firewall and VPN server. You can setup wireguard with just ifconfig.