He did mention dynamic DNS, but that’s really only ok (in the US at least) if you’re willing to to be down did a few minutes every day, and as long as you get hardly any traffic. Even with your 300 (100)mbps fiber connection, you’ll only get 5-10mbps upload, and only if you have virtually no incoming traffic. It’s (barely) ok for zoom or counterstrike, but you’ll be blocked for hosting a web server. The days of being able to self host are long gone.