I'd say it's mostly forgotten by the current day mainstream pop culture but it's certainly not forgotten among the hardcore science fiction fans and community.

The film is a classic and I still remember the first time I watched it as a kid. But the ancient alien technology trope is worn and tired, and you're right, the majority of video games use this, too.

Well, I'm kinda torn between "worn and tired" and "well, actually not-so-hard to believe" depending on one's position on the Fermi Paradoxon and the basic chances of older civilizations, given the age of our galaxy, and what your expectation of a civilization's life span are. In a way it ties in with the "best bet" we can make on the one hand, and deep-rooted psychological and cultural predispositions; psychological in that most people adopt an "everything was better back in the days" attitude as they grow older, and culturally in that for example the middle ages still had a faint memory of the glory of the Roman Empire when everything had crashed down, suggesting that civilization was on a downward trajectory from some mythical golden age of the ancients (or stagnant at best). Which are, IMO, contributing factors why this trope works so well (and will never die).