Right, that makes sense if you can’t adjust your router’s DNS. However, you can manually change the IP address of the DNS servers you want to use per device. I recommend trying to change the DNS on your computer or something to your pi-hole’s IP address. If you do that and can get internet access you should be good. If not then you can check the pi-hole logs to see if it’s getting any of the DNS queries. Feel free to DM me for more help.
https://ipfs.io/ipfs/bafyb4ig3rshu6ok4e65bsdcpemkde6gaakzvuuxz4qf3q7efsdqznqrlwe?filename=angela-cesaro-antibiotic-identified-by-ai-2023.pdf