The only task of a DNS server is (or should be) to tell you how to get to a resource you’re looking for by name. So, the only thing that is going to be reallistically affected is your (initial) connection times. And – since this is c/selfhosted – if you are setting a decent DNS cache in your local network, that should be even less of an issue.

The only borderline scenario that I could see feasible, since this is c/selfhosted , is that some software you are setting up that requires nanosecond DNS resolution or somesuch sillyness is going to fail or report false errors. But why would you even do that?