@B1ooDsh0tAs long as the platform accounts are linked to your EA account, cross-progression is confirmed.
https://www.ea.com/games/battlefield/battlefield-2042/news/battlefield-briefing-answering-your-reveal-questions
CROSS-PROGRESSION AND CROSS-COMMERCE
Alongside cross-play we’re also building cross-progression and cross-commerce for Battlefield 2042, which will be shared across all platforms and travel with you wherever you go. For example, your unlocked progress and purchases in your PlayStation® copy of the game will carry over onto the Xbox or PC version, and vice versa*.
