Yep exactly, "critical social infrastructure" is on point. Here almost everyone is on WhatsApp and some are on messenger, meanwhile the other apps are only used

Yep exactly, "critical social infrastructure" is on point. Here almost everyone is on WhatsApp and some are on messenger, meanwhile the other apps are only used by a few. Last year I even had to register on FB to not be out of the loop concerning a sport club I got in.