Why is Apex Legends cross-progression not working?

Respawn has just added a highly requested cross-progression feature to Apex Legends, but it's working for everyone.

Apex Legends cross-progression and gifting are in the works at Respawn

How to Fix Cross Progression Not Showing in Apex Legends - Followchain

Apex Legends cross-progression not working - how to fix the issue

Cross Progression in Apex Legends™

Solved: Re: Cross progression apex legend Nintendo to PS4 - Answer HQ

How To Fix Apex Legends Cross Progression Not Showing Up

Apex Legends Mobile Cross-Progression: Can You Sync EA Account for Skins and Other Cosmetics? - GameRevolution

Apex Cross Progression Not Working: All Solutions - The Nature Hero

Apex Legends Cross Progression Not Working: How to Enable