> Likewise, if i switch between wifi and cellular on an android device... On an Android (like on iOS), both WiFi and Cellular interfaces can be active at once.

> Likewise, if i switch between wifi and cellular on an android device... On an Android (like on iOS), both WiFi and Cellular interfaces can be active at once. Apps (with appropriate permission) are free to bind to either. > ...all existing connections stop and must be refreshed. On network changes (in particular address changes), TCP connectivity may break. SCTP / QUIC / UDP (and UDP-based protocols like WireGuard and MoSH) should continue to work just fine.