You’d be forgiven for not having heard of it, however.
Tae-hyungstreamed the game on November 27th.
It’s Among Us, then - or any of a number of other similar games.

In fairness to Goose Goose Duck, it does have more variety of modes than Among Us.
It’s also free-to-play, while Among Us costs a few bucks.
Its sudden increase in popularity has naturally caused some issues, including server outages.

All of this is pretty similar to the sudden success of Among Us.
Among Us was further helped along by a global pandemic trapping everyone inside, of course.
If you feel like being betrayed by some strangers, you cangrab Goose Goose Duck for free from Steam.