I play on both PS4 and PC and own all of the current content on both platforms. With the link between Battlenet and Steam I'm unsure of if I have to do something differently if I want to use my PS4 characters for cross save. Or that if I don't link my account, if I lose out on what I have purchased for PC already.
The forums have not mentioned anything specifically, and I don't want to lose out on all the progress I have put into my console characters since that is where the majority of my time has been spent.
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Hello, Steam Linking does not affect Cross Save. So you can link Steam to Battle.net today and then set up your PS4 account as your Cross Save account tomorrow.