You’re guessing correctly. My actors spawn and then when collected by the player, they go into an inventory array, and are then spawned from that when the player looks at them later.
I’m not sure how to save the details of spawned objects.
I do know how to set up save/load game stuff.
(I dove in to UE a year and a half ago, without any previous experience, so my knowledge level is still beginner I’d say.)