Dynamic DNS vs Dedicated VPN IP - sh.itjust.works

Hi everyone! I’m looking into self-hosting, and I currently have dynamic DNS set up to point to my home IP. My question: is it worth getting a dedicated IP through a VPN? I’m pretty technically savvy, but when it comes to networking I lack practical experience. My thought is that pointing my domain to a dedicated IP and routing that traffic to my home IP would be safer - especially if I only allow traffic on certain ports from that IP. Just curious if that idea holds up in practice, or if it’s not worth the effort.