It does make it easier. IPv6 pinholes are simpler than port forwarding. My IPv4 is not static but my IPv6 prefix is. So I don’t need dynamic DNS. I have no IPv4 port forwards, instead I run snid on a VPS to support legacy internet clients and call it a day.
https://github.com/AGWA/snid
So you basically have a cloud server and a domain with a wildcard record, and you then forward IPv4 through IPv6?
I think this somewhat proves my point that IPv6 doesn't solve much for self-hosting. You still need some kind of working IPv4 setup. You are using IPv6 in place of either a reverse proxy or something like tailscale, which I suppose is more convenient.