Earlier quoted context omitted.
Original pi zero with usb Ethernet also runs fine
1. You’re totally right about that, but I couldn’t find one as easily 2. I was initally hesitant about using WiFi for DNS, but after reading comments it seemed that no one really had any issues. Mine has been kicking for 6 months sitting right next to my router without any noticeable delays, so I think it’s okay.
FWIW, that was also an initial concern of mine. Almost three years later, i've never once had an issue with running my pi-hole over wifi.