HOW TO ADD CROSS-PLAY FRIENDS
You can add players on other platforms to your EA cross-play friends list. This way, you can invite them and play together even if you are on different platforms! There are two ways to send them a friend request. If you meet a player in-game and would like to add them, select their name in the Scoreboard, select “View Game Profile”, and select “Add to EA Friends”. They will receive a friend request and can accept it from the Social Menu (under “Invitations” and “Pending Friend Requests”).
If you want to add someone who’s not in your game, you will need their EA ID (this is the name of the EA Play account associated with their first-party account, which they linked the first time they played an EA game). Open the Social Menu, open the “Invitations” tab, and enter their ID in the “Search for EA ID” box. This will send them a cross-play friend request, and once they accept they will be added to your cross-play friends list.