Cellular networks don’t quite work like this. Your mobile data connection is actually a point-to-point tunnel to a gateway somewhere in the provider packet core, so you don’t really just “leak” multicast packets to other devices on the same cell.
Even in many enterprise Wi-Fi networks, it’s quite common to see either client isolation or multicast filtering in place (in part because multicast traffic is often sent at a very low data rate and that can have unintended side effects).
Even in many enterprise Wi-Fi networks, it’s quite common to see either client isolation or multicast filtering in place (in part because multicast traffic is often sent at a very low data rate and that can have unintended side effects).