Yeah, I think four of the founders/initial employees were ex-Ableton people, it was a thing that was highlighted when Bitwig first launched (around 2014 maybe?), together with that they were also Berlin-based (because that matters...) and it had Linux support from day one :)

I'm not finding any first-hand sources about it, but remember that most articles at the time mentioned it one way or another.

If my memory is correct both headquarters are just a short walk appart, on 2 different streets that cross each other.