Thankfully, they recently introduced logo requirements for this exact reason.
In order to pass through the USB-IF Compliance Program, all USB-C® to USB-C cables categories must be labelled with either a power capability of 60W or 240W by using the appropriate power icon and/or logo. The USB-IF now requires that all cables must be labeled with the 60W or 240W logo prior to compliance testing so that testing can confirm the intended display of such icons/logos. The policy now extends to all USB-C to USB-C cables. These markings must be checked before compliance testing can begin.
In addition to the power markings, in order to pass through the USB-IF Compliance Program, all cables except for High-Speed USB (USB 2.0) USB-C to USB-C cables, are required to be marked with the appropriate data rate they can support. An example, a USB 20Gbps USB-C – USB-C cable that supports 20V at 3A must be marked with the Combined Performance and Power 20Gbps/60W logo.
The logo is useful for data transfer, but for power delivery you can usually find the outputs on the adapter. For example, my 65W USB-C charging cable supports 3A at 5V/9V/15V and 3.25A at 20V. It’s not very consumer friendly, sure, but at least it’s simple (higher is “better”).
As if 99% of cables aren’t bought at dollar stores and gas stations to charge phones for 2 weeks before being lost or damaged. And none of them bother with USB logos.
All I really care about it the durability of the phone port, and usb c looks far more inherently fragile than lightning. 1/4 of the USB Cs on my MacBook Pro have issues, and my phone gets plugged and unplugged far more often, and only has one port.
I feel the same way about durability but apparently usb-c is rated to 10,000 insertions. Idk though. The lightning port has been very solid in regular use but I can’t say the same about the usb-c ports I’ve known.
Eventually wireless charging will be the standard so it might not matter as much for phones.