There’s nothing to “get”. The circuit doesn’t fit inside the slot for expansion cards. You could plug in a dongle instead, but then you’d have a big hole in your laptop with a cable sticking out. Or you could just get a wider laptop bag. They make them in multiple sizes, you know.
Er, no, then you'd use the regular USB-C expansion card and plug the dongle into that, and then the port becomes generally useful.
A wider bag doesn't solve it. The part that sticks out could still easily snag on something. I wouldn't want to take that risk, and I doubt many people would.
I feel like you're arguing just to argue...
> you’d have a big hole in your laptop with a cable sticking out
No, you wouldn't. You'd have one of these instead: https://frame.work/products/usb-c-expansion-card?v=FRACCQ000... (or the one matching a color you prefer and your particular model)