Yes, it is of course based on the Cyberpunk TTRPG IP, which sets many world building aspects. However if compare the content of the Cyberpunk 2020 TTRPG guidebo

Yes, it is of course based on the Cyberpunk TTRPG IP, which sets many world building aspects. However if compare the content of the Cyberpunk 2020 TTRPG guidebook with what is in 2077 you'll quickly notice the monumental difference in scope and how much the latter drew of these other works in ways obvious and subtle.