What is this four-player card game with only Jacks, Queens, Kings, and Aces?
In my family (Austria), it is called "HAUSDEPP". So it lasts a little longer than EZEL ;)

We dont place a hand in the center, but have #numer_of_players-1 walnuts in the center of the table, and everyone needs to grab one, as soon as one player reaches 4 equals and grabs the first.

Apparently, the game is "well known" under that name. Could not find official rules, but several references. You can also take bottle caps in the center:
https://www.flickr.com/photos/28527236@N05/3361355864