I'm on 25.7, and use the free ControlD DoT service with Unbound. I haven't had this issue.
The only problem I've ran into is that if IoT devices spam 3,000 queries within a minute, then ControlD will ban your IP for 24 hours. The workaround has been setting up overrides for the addresses they're reaching out to.
The only problem I've ran into is that if IoT devices spam 3,000 queries within a minute, then ControlD will ban your IP for 24 hours. The workaround has been setting up overrides for the addresses they're reaching out to.