Encountering an irritating number of devices that are charged/powered via a USB-C port but that don’t work with a USB-C pd charger (only with a USB-C to USB-A cable).
Bonus irritation: a device with a USB-C port that works with a PD charger only if the cable is plugged in one orientation, but will work in either orientation if connected to a USB-A charger. (A Phillips rechargeable pocket work light).
I’m hard pressed to think of another “standard” that has as many incomprehensible and unpredictable ways things can be incompatible as USB-C.
@mattblaze TIFF is up there.
@jef @mattblaze I was thinking of the many flavors of RS-232 and RS-422 but I think you've topped that with TIFF which more fully embraces the principle of appearing to be compatible (often falsely) and not always even being aimed at the same purpose.