You would be surprised. Many of my guests are professional software engineers, and they still struggle with these types of things. I suspect this is downstream of how streamlined the gaming experience has become in the last 15 years. Most people are buying, downloading, installing, and launching games exclusively through launchers these days, so even the technically minded might not have the muscle memory for "the old ways." I have also had to explain to people "yeah you just click on game.exe" who then didn't know what I meant by "DOT E-X-E". It's just a sign of the times.