Intra protects you from DNS spoofing, certain types of blocking, and some forms of surveillance without needing a full VPN. This page outlines the core features available when running Intra on your desktop.
You can enable DoH directly in Settings > Network & internet > Ethernet/Wi-Fi > DNS server assignment .
If you strictly want to use the Android app's interface to measure network queries or toggle protection on and off, you must use an Android emulator. Using BlueStacks