Do you feel this is very Euro ?

Why? It felt actually very real. In USA they would shoot everything in front of green screen.
I loved Euro-feel.

The production received a record €10 million grant from the German government's German Motion Picture Fund (GMPF), and €1.5 million in production incentives by Business Finland.

Filming began by September 2022 in Berlin, and also took place in the municipality of Inari in Finnish Lapland in January–February 2023.

Foreign unknown languages? English, Russian and a tiny bit of Swedish and a drop of German.

Foreign unknown cast? Jonathan Banks (Mike from Breaking Bad) is a main character. And some of the other ones, while not A list actors, they have done decent roles, specially in sci-fi. Noomi Rapace in The Girl with the Dragon Tattoo, Barbara Sukowa from 12 Monkeys (TV Series) and Atomic Blonde, and a few other ones.

Constellation is Great as it is. With Russians speaking Russian, and non-Russians speaking Russian as a second language with the correct accent. And with great photography in very nice locations.

And it was all done with a relative small budget.

I hope there will be a second season.