Hi Leinonen,
In Germany we have several kind of co-editing spaces, listed here:
https://de.wikipedia.org/wiki/Wikipedia:Community-Space
In addition there are as well several "Stammtische" (well, at least usually, currently of course not):
https://de.wikipedia.org/wiki/Wikipedia:Treffen_der_Wikipedianer
Some are meeting online now, but most are waiting for better times without that damned virus.
Greetings from Bremen,
Sänger