Some people will also any available lib for games, doesn't mean it's "widly used". As for such a plugin, it's more like wishful thinking for getting gaming customers than actually something that sells in any amount to write home about.

The kind of games some tint amount of people make with JUCE is like this: https://ankuznetsov.wixsite.com/jucegames and even those are few and far between.

In any case, nowhere even close to "widly used" in gaming. Nor moderately used, or even low use.

"Few and far between users of JUCE for games, and even at that almost all of them using it for hobby casual game projects" is an accurate description.

JUCE does dominate in audio VST/AU fx/instruments GUIs though...