Agree- I have been largely disappointed by USB-C. It's been okay as a smaller USB-A replacement for flash drives and mice, but in general the lesson of USB-C is: just because it fits, doesn't mean it works.
My personal favorite annoyance is how chargers and cables are advertised with the wattage they support, but it's really the voltage and current that matters.
If you have a device that wants 20W as 9V/2.22A , your 30W charger may not support that specific combination and will charge much slower than a 20W charger that does.
Edit: Yes, I went to middle school and know that power is voltage times current. My point is: having an equal or higher wattage USB-C charger is not sufficient.
My personal favorite annoyance is how chargers and cables are advertised with the wattage they support, but it's really the voltage and current that matters.
If you have a device that wants 20W as 9V/2.22A , your 30W charger may not support that specific combination and will charge much slower than a 20W charger that does.
Edit: Yes, I went to middle school and know that power is voltage times current. My point is: having an equal or higher wattage USB-C charger is not sufficient.