1. have separate vlan (named vspy ;) for all the external devices like appletv etc
2. all traffic to internet dns ports (53, 853 etc) is completely blocked from this vlan
3. all trafic to ips list (using ipset matching for speed) containing manually curated few dozens of publicly known DoH servers (including 8.8.8.8 et. al) is completely blocked from this vlan
In other words: use my own dns server or go away.
all services works fine (apple,google, tv/movies streaming etc.) while being in this vlan, and I see "my" devices continuously hit the 2&3 bariers.