хотя и на иос с множественными впн не все так просто
"A summary of this is that only one NEPacketTunnelProvider can run on the system at one time because they are considered Enterprise VPNs. If a Personal VPN (NEVPNManager) is running on the system and a Enterprise VPN (NEPacketTunnelProvider) is started then the Enterprise VPN will take precedence over the traffic claimed by the Personal VPN. Only one Personal VPN can claim traffic at one time. If an Enterprise VPN (NEPacketTunnelProvider) is running and only claiming a small subset of traffic and a Personal VPN is enabled, a Personal VPN would have an opportunity to claim traffic not routed by the Enterprise VPN (this is a very rare case though)."
хз че так сложно