It seems you are confused, of course thick glass is used less frequently than double pane glass, but that doesn't mean we call the latter by the former in North America.
Recall that the topic was your suggestion that "It's not feasible to make glass doors on coolers much thicker", which given this new information, doesn't seem true. Indeed, these screens are a second layer of glass stuck on the existing glass cooler door, with electronics in between. That's heavier than the same thing with air in between.
The GP says that nobody would use actually thicker glass, they'd use two panes of thin glass instead. Their reply was a bit confusingly worded, I think you're both hostilely agreeing with each other.
Recall that the topic was your suggestion that "It's not feasible to make glass doors on coolers much thicker", which given this new information, doesn't seem true. Indeed, these screens are a second layer of glass stuck on the existing glass cooler door, with electronics in between. That's heavier than the same thing with air in between.