Well, I don't know how much they suck now as I've left 10 years ago, but I know pre-corona there were many cases of the largest traffic jams ever reported in the news, almost weekly :)

When I was there these numbers were much lower despite the A2 being a horrible ever-changing construction site. And it was already so frustrating I once broke my teeth just from grinding it :(

At the same time even the frequent train routes were apparently really overcrowded. Everything is different now with Corona of course but that's worldwide.