I've a new phone (android 11) where ads are not getting blocked. Not sure if it's related but it's the only device on my network with wifi 6, router does support wifi 6 and the phone do indicate it's running wifi 6. I can see the mac and ip address in pihole web, when I'm browsing there is no querys made from the new device.
Ads would likely to be blocked on my new phone aswell.
My other devices (computer, old phone, watches, tvs are working as normal - ads beeing blocked)