Yeah, I don’t use this effect across my site because it’s harder to get a good UX with it.
That being said, it has more of a place in games. Especially in HUD where you don’t want to occlude the background since that’s the main area a user is interacting.
It has all the same problems in games as it has on a website, it's just more acceptable to sacrifice usability for 'looking cool' in a game.
In HUD you don’t want to occlude the background since that’s the main area a user is interacting.
Disagree; the action behind the glass will make using the HUD more difficult, and the glass will make seeing what's behind it almost impossible. It makes both parts of the experience worse. Although, on the surface, to an onlooker, it might look 'cool'.