If a device is advertising a service of type "_blah._http._tcp.local.", but I've set ServiceBrowser to filter for its supertype "_http._tcp.local.", then in

    def add_service(self, zc: Zeroconf, type_: str, name: str) -> None:
        info = zc.get_service_info(type_, name)

the type_, and info.type, are both the supertype "_http._tcp.local.", rather than the actual type of the service. IMO, the actual type ought to be accessible. A key point seems to be here:
https://github.com/jstasiak/python-zeroconf/blob/7430ce1c462be0dd210712b4f7b3675efd3a6963/zeroconf/_services/browser.py#L355
wherein the actual type is split into a list of it and its supertypes, I guess? Probably then there's something that filters the resulting events, and only the one keyed to the supertype succeeds.

Desired result: get_service_info ought to include the actual type of the service, and possibly type_ in add_service et al. ought to be the actual type, too, though I'm less convinced of that.