Wow...this became a way bigger discussion than i intented it to be.
So if i got everything right it is like that:
Same focal length + same aperture + same distance to subject on different formats = different FoV but with same same DoF. And that makes total sense to me because the lens projects the same image as before but on a smaller area to capture it.
And same focal length + same aperture + same object framing (which means bigger distance to subject on smaller formats) = bigger DoF on small formats because the focal distance is further away and smaller DoF on bigger formats because the focal distance is closer to MFD.
I hope my english is good enouh so everybody undertood what i meant...
Greetings from Germany,