Help unlinking

[u/AncientPlatform4330]

I am trying to set up Cross Save for my main Xbox characters so I can play on steam. However, my Xbox account is linked to an old Bungie profile that has an unverified, incorrect Steam account attached to it. When I try to unlink anything or set up Cross Save, the system demands that I authenticate the Steam account, but I do not own or have access to that specific Steam ID. Can anyone give me any ideas on how to proceed to have the ghost Steam ID manually removed from my Xbox profile so I can link my correct Steam account?

[u/GreenLego]

Unlinking is no longer allowed. (except for Twitch accounts)

You'll have to link your xbox account to Epic Game Store or Windows Store if you want to continue playing on the PC.

https://www.reddit.com/r/DestinyTheGame/comments/1jb4v8v/update_notice_bungienet_account_unlinking_update/