Fog lights even with good visibility? Why?

Hello! I see more cars with fog lights on in road traffic. During the day I can explain it to myself as a daytime driving light replacement, but in (clear) evening hours in addition to the main lighting it does not make any sense or disturbs only the opponents. Mostly it is younger road users which does not have to mean anything or can be a coincidence. Even if the legal consideration was already a topic in this forum several times, I wonder where this increase is intended to be. Mdeter usage is coming? Best regards.