That’s not correct, if it graphics enabled or thunderbolt USB C it will always state that in the description, anywhere that just says usb c, it’s just usb c. That’s the misunderstanding. For any tech buy, always get advice if it’s tech you’re not familiar with.a USB-C port should be able to work with alternate modes, unless it's underlined that it simply can't.
But that’s the point, usb c CAN’T do other things, it’s simply a data connector. It’s only when you add separate controllers to the input that it can carry other transports. Anyone in IT hearing USB C will think data only. It’s only if it states DP OVER USB C, or thunderbolt over usb c that you would consider it as anything else.If a tech is capable of doing multiple things and the use cases are extended widely and accepted as standards with large amount of tech manufacturers, you better tell what you can do with it to avoid any inconvenience (simple, USB-C (data only), that's it).