A sabbatical is half a year or a year in germany. NO one would ever say this nonsense of 'four week sabbatical'.
Sabbaticals, paid or not, seem to only be somewhat common in western Europe. I'm glad that you're able to able to experience this but recognize it's quite a privilege globally. It's not just the USA that has this "nonsense"
To me, “work 40+ years and retire when you’re already physically and mentally slow” is the real nonsense. A sabbatical thrown in here and there doesn’t make up for it. I’m grateful that I live somewhere with high enough paying jobs that I can simply quit after just 20 years.