i'm in the market for a decent gaming laptop and i would like to know few things regarding USB-type c features, compatibility with currently available laptops

is the USB-type-c features straight forward like plugging in a external GPU to a laptop.

what are the limitations?( of current laptops)
because most tech upgrades in PC's require digging into over exaggerated marketing hype and decipher what is real.

is this like the whole pci-express support boasted on lower end motherboards where it has a symbol saying you could plug in two GPUs but infact it has 16x and a 4x slots. (p35 mobo from back in the day..lol)