It gets even better, each function of the port also needs proper support from the cable. Often cables do not support the full spec of usb to cut costs.
While the symbols in the post are often put on computers, for usb cables this is seldom done (only a few brands do).
Source: had to find a cable that supports both DP and PD to connect a portable external monitor after I lost the original cable. (1/9 cables worked)
I've got a USB-c cable that can charge and transfer data at high speeds... But ask it to transfer display data to a screen and it won't do a thing.
The USB-c standard is a nightmare... While having the same port for everything sounds like a decent idea to reduce waste, not every product requires the full spec. Maybe mandatory labeling (like some companies are doing already) would be a solution, but it's rather late to start with that now.
One of those cables that don't work is rated for like 120W, with gigabit transfer speed... But it refuses to transmit display.... Like bruh