A number of these interfaces are addressed in the existing post [Surprisingly many network interfaces on macOS: are these legitimate?][1]

As this is a mobile device , there are some additional interfaces:

 * `ap1` is an Access Point interface.  This is if you turn it into a hotspot
 * `llw0` is Low Latency WAN link.
 * `ipsecX` are VPN links. While you aren’t using VPN currently, iOS is capable of VPN connectivity and these would be the interfaces used 

(Still editing, on iPad,  please wait!)

  [1]: https://apple.stackexchange.com/a/332194/119271