Quoted FAQ question from the.. FAQ page. Reading through the FAQ, this quote and another has me confused. So, my situation as an example: I have a PS4 account where I played from launch for Season 1 and parts of Season 2, got some awesome stuff in the unlocks. Then had more friends on PC get the game when it came out. Also, preferred playing on the PC anyhow. What I want to know is, now that I've set up Cross Save with my PS4 account connected but my PC account as the main, will I be able to grab stuff from my collections that I unlocked on my PS4 account? In other words, will I now have all of the unlocked stuff in my collections? Or is it only going to show my collection of what I unlocked on my PC account? "If I don’t own specific game content on one platform, can I use the gear associated with that content that I earned on another platform? Mostly, yes. Players keep all their Forsaken gear/progress while playing on platform where they own Base D2 and not Forsaken. Exception: PlayStation Exclusives. Those can only be used on PlayStation until Shadowkeep launch. After launch, that restriction goes away. Also, users can’t play any Forsaken gated activities and new rewards will drop at the D2 Base power cap while playing on the platform that doesn’t own Forsaken."
cross save will let you take the collections/progress of the active save with you, it does not merge anything between saves.