[londons_explore]

On both android and iOS, a regular app can't choose to send packets over both 5G and wifi at the same time. Thats needed to setup a new connection while still using the old one.

[toast0]

I was pretty sure that android and iOS both have apis for apps to choose between 'whatever is best', 'wifi preferred' and 'cellular preferred'?

I don't know the details, but some iOS network apis (Network Kit?) allow you to set a required interface type somehow. https://developer.apple.com/documentation/network/nwparamete...