On the rare occasion I plug in a usb flash drive (I assume that's what you mean by "stick") I use the usb-c end. On the even rarer occasion I use it with some device that doesn't have usb-c (this is actually just hypothetical I've never done this in practice) I turn the flash drive around and use the usb-a end.

It's been clear that usb-c is the future for a decade now. How on earth do you still have flash drives that are usb-a only?

I probably use the power button once a month, and I'd say this is the norm for most developers/similar people. It's no harder than accessing the menu button/toggle stick on the back of my dell display.