Do we know yet if progression etc is account or platform bound?

Hi there,

So i’ve seen there were posts in the past asking about this. However, due to the game being in development at the time, understandably there was no straight answer. I’m wondering if anyone knows what is happening or if any of the developers would be able to shed some light?

Essentially, the reason I ask is that I have friends split across pc and ps4. I’m fine buying it twice, eventually, but would like to keep my progress as I switch between two systems.