That's also how it's done in almost all French engineering schools. You get open book tests with a small amount of relatively difficult questions and you have 3-4 hours to complete.
In some of the CS tests, coding by hand sucks a bit but to be honest, they're ok with pseudo code as long as you show you understand the concepts.
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).
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.
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
In some of the CS tests, coding by hand sucks a bit but to be honest, they're ok with pseudo code as long as you show you understand the concepts.