The spec almost requires manufacturers to do that. https://fabiensanglard.net/usbcheat/usb1.1.pdf, page 81:
“The usb icon is embossed, in a recessed area, on the topside of the USB plug”
“Receptacles should be oriented to allow the Icon on the plug to be visible during the mating process”
So, there must be a tactile and visual indicator (the recessed usb icon) and it should be visible.
They didn’t say “clearly visible”, though.
That's worse than Type-A, since I can't even look at the end to see which side has the plastic bar, I just have to try it and obviously it fits, but see if it charges. Which means it takes about 94 attempts because I only realise the other end's not plugged in, or it's turned off at the wall, on the 92nd.
They work fine with an A-C cable, even when using that with a C-A dongle. But often only one way up.
They’re clearly noncompliant. Not that that stops anyone.
But I guess it might just have two wires (+5V and ground) and no data wires (I can't check it now because I'm at work).