Router Port vs VPS Reverse Proxy

„Inspired“ from https://lemmy.world/post/287146 and many related questions (also on reddit before).

Why don‘t people like opening Port 443 on their Homerouter? An open Port itself is not a vulnerability because nothing is listening on it, therefore there cannot be any connection established. When forwarding Port 443 From Router to e.g. The Homeservers LoadBalancer / Proxy, this Proxy is the final resolver anyways.

So why doing the more complex and more error prone Route via the VPS / Tailscale / CloudFlare?

I did that some years ago too, but just because i did not have an static IPv4 at home. But speeds were awful and i switched to Routerport + DynDNS and now everything is super performant.