How do XP and levels work?
You earn XP from real matches — it accrues on your account and shows on your profile and progression page.
Playing matches earns XP, which builds up on your account and is visible on your Profile and Progression pages. It reflects real games you've played — there's no way to buy your way up.
Progression is shared across the platform, so everything you earn counts toward one account, whichever game you're playing.