There is no European mind when it comes to education, hell, there is barely a national mind for those countries with federated education systems (e.g. Germany).

I don’t recall take home exams being at all common undergrad in the US. Open book or one page formula sheets more so.

in France I got a bunch of equivalent take-home tests, between high school and graduate level, mostly in math and science. The teacher would give us exercice equivalent to what we'd get in our exams and we'd have one week to complete it (sometimes in pairs) and it'd be graded as part of that semester

Well take home exams are not very useful nowadays with AI. And yeah, other commenters are right when he says there's no European mind when it comes to education, each country does its own thing.