Paladin_MK3

So I have 2 accounts at the moment, my Mr20 PC save ans my MR8 PS5 save. With cross save being a thing in the future, will it be a simple different login method or will i lose my PS5 save when I set my PC save as the main to use. I did just buy a bunch of plates for tenno con but I'm sure that won't transfer I admit I haven't looked very hard into details on this new cross save. And being homeless doesn't help I can't play on my PC account lol