I don't know if this is the right forum to ask, but how would I disable IPv6 utilization completely through OpenVPN Android client for Mobile Data? AdGuard has an option for that in Low Level Settings. I tested that AdGuard option and it worked as described by disabling IPv6 for both WiFi and Mobile Data.
How do I do the same with OpenVPN Android Client? I only see IPv6 Tunnel Preferences option in Android OpenVPN client. Should I set that option to IPv4-Only Tunnel to disable IPv6 for Mobile Data and WiFi when using OpenVPN?
Also, how do I set custom DNS in OpenVPN Android Client?