Might be an idea to not use any public A records and just use it for cert issuance, and Stick with private resolvers for private use.
It’s a domain with hosts that all resolve to private IP addresses. I don’t care if someone manages to see hosts like vaultwarden, cloud, docs or photos through enumeration if they all resolve to 10.0.0.0/8 addresses. Setting up a private resolver and private PKI is just too much of a bother.