I mean, you could simply search for

Greece 13 hour

And then you get search results like this that proove that yes the Greek government indeed tries to push for 13 hour days.

I’m honestly a little stumped why you think that this is so strange, there were already multiple articles about it in July.

And maybe there is misunderstanding between mandatory 13 h days and being allowed to work up to 13h? They push for the second one, but that just means that the companies will force those in bad jobs to work even longer.

Nobody is working efficiently and effective for 13 hours. That is simply not possible