The cross progression used an incorrect account as the main progression
It turns out that when the cross-progression option was released, there was an error with my account that I can't resolve. To give you some context, I started playing Apex Legends on PlayStation (Progression A) with my EA account. After a while, I had to migrate to Xbox, where I used my EA account again, but now with a different progression (Progression B). It turns out that all my important progression is on PlayStation, but my progression on Xbox is very low. When the cross-progression option was released in Apex Legends, my Xbox progression B was used as the primary one (it's worth noting that it's a lower level than the other one and has fewer hours and stats), and I want to use my PlayStation progression.
I've already tried contacting EA customer support, but they told me that my PlayStation progression disappeared. Others didn't offer a solution, some didn't know what to do, and others told me to stay tuned for updates on my case.
I stopped playing Apex Legends for the same reason: I think it's a waste of time to play on an account where I'm practically back to square one, instead of progressing beyond the level I dedicated time to and even spent money on.
If they say it disappeared, it means I lost stats, achievements, and cosmetic items since Apex's release.
Thanks if you read this, and sorry if it's not very clear; I'm not a native English speaker, so I'm not very fluent in the language.