Overtime is perhaps more about the company and oneself, but in my experience is something you decide to do it or not. If you do it companies pay for overtime. I never done overtime (because companies pay pennies for it :) )
Well that was my point. There's no EU law that prevents you from having to do overtime.
Also agreements with trade unions etc. take care of a sane base-level of holidays and payment.
Germany is also "heavy regulated" in the sense that good people will just choose a job with a competitor who gives you 30 days of free time and paid overtime, although he might pay less.
I think work-life-balance tips slightly over to the worker in a welfare state, because you can choose to earn 100 Euro/month a less but have more holidays AND still have not to worry about paying doctor bills.
That describes every job I've had in Sweden over last 6-7 years or so. But then again I've made a conscious effort to void some of the 'crunchier' industries (like game studios and certain startups), which admittedly does mean getting paid a bit less.
Overtime does happen but French law requires I be able to recover my time (RTT). In my experience there is a mad rush to use up that time before 31/12 so you'll see an additional holiday season around Nov-Dec. Else, it goes away and that time is lost to the fiscal year.
Maybe you can show me where I can find these 40h/week no-overtime with 30 days/year vacation jobs so I know where to move next.