In Kolkata where I was born but didn't grow up, this is called "Adda" culture[1] at coffee houses. I guess in Germany they would call this Kaffeekränzchen. Super interesting how this pops up organically in most urban settings. Would love to join a new movement around this in my town.

[1]: https://www.telegraphindia.com/my-kolkata/places/from-colleg...