But isn't that already the case with the ports directly on computers? I have a laptop that can do USB 3.2 (or something). I can charge it through those ports,

But isn't that already the case with the ports directly on computers? I have a laptop that can do USB 3.2 (or something). I can charge it through those ports, but it doesn't do Thunderbolt of any kind. I have a small desktop in front of me that's power through an external adaptor, like a laptop. It has a USB-C port that doesn't do video output of any kind and which can't be used to power the computer. It has another USB-C port with a bolt on top of it. It does thunderbolt, it can output video (I've driven an Apple TB display with it), but still can't be powered through it. It also doesn't output video through the USB-C dock, which works on the laptop. I have another laptop with a USB-C port with the bolt on it, and it can be powered through that port. These are all ports directly on the computer, no hubs required.