That's the official party line, more or less. By design, there is a hard bandwidth limit on tethering. There's also a device limit. Eg, if one were to buy a

That's the official party line, more or less. By design, there is a hard bandwidth limit on tethering. There's also a device limit. Eg, if one were to buy a new phone and put a new Visible SIM into that phone and tether their new MacBook with it, and do nothing else, the speed would indeed be limited and this limit would be enforced at the carrier level, and furthermore connecting a second device would be theoretically impossible. But setting TTL to 65 has been very effective every time I've done it, whereby: The speed of tethering is about the same as the speed of data on the pocket computer itself at any given time. And I've never actually run into a device limit, even without tricks. (So yeah, there's reasons for my camping rig to have a USB 3 ethernet adapter for a phone, with USB PD passthrough. I wouldn't care so much if 10Mbps were all that could be accomplished, but things are not necessarily slow like that at all if you're holding it right. There's a million other ways to skin this cat. A cheap travel router is one way. A cheap USB WiFi adapter on a laptop is another. Setting TTL forever is a one-liner on Windows. And y'all know how to do NAT.)