Is it possible to set a http proxy & port on a iOS personal hotspot connection
It seems that iPhone hotspot blocks access between devices on the local network.
I've set up an HTTP proxy on my Windows device. My other Android phone can pass through the proxy tunnel when they're connected to the same rooter.
However, it won't work if they're connected to an iPhone hotspot.

My daily proxy app Shadowrocket works in the same way: It allows my iPhone to share the proxy to other devices when connected to the same network, which here means a rooter, NOT an iPhone hotspot.