As far as Shadowrun goes, it's a sci-fi cyberpunk game with strong high fantasy elements that first came out in the 90s. Basically the world history started off as your standard near future distopian setting, then magic happened. Remember a few years back when there was a middle-big fuss being maid about the Mayan calendar ending? Well, in the Shadowrun universe that was actually a thing. Except instead of the world ending it was the sign of the changing of an Age and the return of magic. People first figured this out when a dragon flew bye a Japanese airliner. The long story short, spells and rituals passed down for thousands of years started actually working. Monsterous creatures out of legends began reappearing and big portion of the human population started changing into elves, trolls and the like. All this set alongside super powerful megacorporations, huge divides between the haves and have nots and technology run wild. All set through a 90's filter, since that's when the game was released. A Shadowrun look would mix punk-like elements with super high tech and cyberwear with tattoos of ancient runes and mystical symbols. Native American culture is strongly on the rise, as well as fakey 'elf' and 'ork' stuff. And never, ever cut a deal with a dragon.
As far as the existence of cyberwear in the QC verse... of course it does. I mean we technically have cyberwear in our world, what with artificial hearts and such things. Those sorts of things are probably more advanced generally in the QCverse. We haven't seen any signs of wired man/machine interface yet, or optional/cosmetic enhancements. So not to cyberpunk standards of advancement yet. So no data jacks or anything. You probably could get some sort of bluetooth enabled audio implant working with today's technology. Visual aspects like Station was suggesting would be more advanced, meaning a splice into the optical nerve or something similar, rather than just what amounts to a speaker and subvocal mic implanted into the ear and throat.
I'm not sure Gordon is a brainwave scanner in the sense of being able to pick up thoughts. I always figured he was something like an advanced EKG/Polygraph machine that didn't require him to be wired to sensors on his subject's body. Then the assistant administered a Voight-Kampff like test and Gordon analyzed the subject's emotional responses via electrical changes and such.