How to fix Android not using server sent DNS

[erhan-]

This is just a short tutorial if Android does not use the VPN provided DNS:

Go to Settings > Network & Internet > Private DNS and set to Off. Also: If you are testing Termux, there is a bug where Termux only uses /etc/resolv.conf instead of the DNS set in Android.

Can we add this to the FAQ or the Readme please? @kylemanna