Hey everybody,
thanks for the support - really great to have a community with the willingness to help and so many experts! yay!
To clear things up:
My lock indeed didn’t pair right with my hub v2: it skipped the part where I have to enter the DSK-Code because at first try it wasn’t recognized as a lock.
I reset, I repaired, entered the code, and it went! also updated to the Danalock device-type like @RBoy recommended.
So much for EU compatibility - seems to work fine. Just the guest access smart app doesn’t seem to be available within EU markets - might dig into @RBoy Apps to fix that. 
Thanks everyone!