IME, moving ssh off the standard port reduces bot scanning traffic by >99%. Not only it means less noise in the logs (and thus higher SNR), but also lowers the chance you're hit by spray-and-pray in case there's a zero day in sshd (or any other daemon really).
True, but I hardly open any ssh to the wide world. I would only allow it inside a closed network anyways. HTTP on the other hand _needs_ to be exposed on 80 or 443 (not technically, but in practice)
The context of the conversation is that the address becomes publicly visible so you get hit with port scanners and script kiddies looking for vulns. Moving off standard ports does help but many of those are also going to look at ports like 2222 or 8022 and treat them as ssh.
It's not hard to just send something like `nmap -sV -p- <ADDRESS>` (or better, use like rustscan.) and you'll discover those ports and the services.
On the other hand, just install something like knocked and you don't have to do much. Knocking is not a difficult thing to set up.
