Introducing what ISPs do with DNS information is helpful to understand how encompassing DNS self-hosting needs to be thought about - DNS requests are important to consider the appropriate encryption for.

From the homelab side, increasingly with the automated attacks on systems, it seems wise to keep all services off the internet directly and put it behind one or more service to keep them safe. From that perspective, setting up something like Tailscale can also help mitigate this kind of issue.