unable to pick up any dropped item from friends. these items were open world drops and are infact able to be shared. everyone else in the lobby can pick up.
Items can only be shared between players who were in the same game instance with one another when the item was dropped. You can tell whether or not an item is tradeable by hovering over it (and pressing control if it’s on the ground), and checking whether or not it’s marked as account bound in the bottom right corner. If it is tradeable, it’ll have the usernames of the players who can potentially receive it written there, as well as a timer showing for how much longer the item can be traded.