Windows 25H2 not applying nextdns server settings

After I configured IPV4 and IPV6 from the setup screen on nextdns website, I see that my windows machine is still not using nextDNS rather using the one from ISP. While I don't think it's my router as my Android device running android 16 connected to same wifi with nextdns as dns server works perfectly fine.

Though I found that using nextdns app makes the system to use nextdns server, which I'm reluctant to use another app for private dns rather than configuring it in Wifi router settings. Any help would be appreciated.