Does using NextDNS encrypts network traffic so that i have privacy and security from my Internet Service Providers. No matter where you go, you do not have a choice in who your ISP will be and have to completely trust them.
If you are using DoH, DoT or DoQ for NextDNS only your DNS requests are encrypted. To have all traffic encrypted you would have to use a VPN solution.
R P M How to activate DoH or DoT for NextDNS?
Mazhar The simplest way is to use the NextDNS app on your device.
Mazhar most devices also have built in options Private DNS for Android The NextDNS app for Windows 11 (Manually putting the IP etc or using a script also gets DoH functionality but it's complicated so even though it requires the NextDNS app far easier.)
Apple Configuration Profile for basically all Apple devices on the latest firmware.
You can also use the Private DNS option on Chrome/Chromium aka Brave/Opera/Edge and Firefox.