Overwatch is merging players accounts in preparation for Overwatch 2

Blizzard have announced that, ahead of the release of Overwatch 2, players with multiple Overwatch accounts on the various platforms, ie PC and console, will be prompted to select the ones they wish to merge, bringing all the progression together into one singular account.

Every player with a linked console account will be prompted at login to identify, select, and confirm the accounts you want to merge. Once you approve, Blizzard will prepare your accounts to be merged during the release of Overwatch 2.

All players will need a battle.net account to play Overwatch 2 regardless of platform. Progress from linked console accounts will be stored on your battle.net account, which will share in-game cosmetics and progress across the linked accounts.

There is a list of questions that you might have on the games site, which Blizzard have provided some answers for, you can check them out here.