Are there? MS even released a fix quite recently for it.

On the other hand, I bet there are plenty more vulnerabilities in Windows 11 that still haven't been discovered yet.

There probably are, but I'd rather have a bunch of vulnerabilities that nobody knows about yet, and that will be patched once people do learn, than slightly fewer vulnerabilities that everyone is constantly trying to exploit and that will be there forever.

Don't be so certain --- the enthusiast community will fix them if they're important enough, even more so if they're ones that "everyone is constantly trying to exploit". Also, no one who knows what they're doing is going to be facing the Internet without a NAT or firewall that blocks incoming connections by default.

"Updates" for XP POS Edition and the like are mostly support filler and don't bring it up to the same security level as a modern OS. I.e.: There's still a bunch of logical vulnerabilities present.