Microsoft Defender Disables VPN

Hello, not sure if this is the right place, 365 Support told me to go to this forum. I have the Defender app on my iPhone, it sets up a VPN for protection, but when it's running, my personal VPN (Express, Nord, Mullvad, etc) is disabled. I turn on the personal, Defender is disabled. Any way to run both, or you think Defender might eventually become a full fledged VPN? The latter seems like the best solution imho