Prefer to use Google Domains and wish to setup dynamic DNS? Here's how to do just that!
Dynamic DNS is fantastic especially if your WAN IP is not static (i.e. your external IP given to you by your ISP may change based on DHCP lease time or other factors). Dynamic DNS will automatically call home to your dynamic DNS provider and notify them of your new external IP. This means that anytime you visit home.example.com, you'll always get directed to your home's external IP even if it has changed. No need to manually update records every time you receive a new external address!