I am a big fan of both, but I think what's missing in reality, but in their fiction (and cyberpunk fiction in general) is a sense of coolness and caring about aesthetics. For all the evil that the mega corporations do in a Gibson novel, they still have an aesthetic appeal. Real-world corporations aren't that interesting. Amazon, Facebook, or Google have nothing "culturally" or aesthetically on Hosaka, Arasaka or Sens…
Sure we are. The future is here, it's just not evenly distributed. Here's a nighttime walk through Shenzhen.[1] Shenzhen is cyberpunk made real. Giant display screens everywhere. Light shows on major buildings, synchronized between the buildings. Robots on the streets. Drones in the sky. Cameras everywhere. Night markets where you can buy both food and electronics. Self-driving cars. Electric buses and taxis. Women in colorful outfits on motorcycles.
Shenzhen looks more cyberpunk than Cyberpunk 2077, the game.