Key point to know:
USB-C is a connector standard. It can carry power, HDMI video, thunderbolt (kind of PCIe), and USB (universal serial bus, used for peripherals like mice, keyboards and storage).
Power can be simply the old standard 5V, or, if both ends support it, they can go to 100W using 20V.
Not every computer/phone/tablet supports every mode. About the only thing you can be sure about is the usb side of things and 5V power.
So to answer OP, yes, USB-C can replace old USB tech and more.
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