Microsoft store purchase transfer to Xbox

nope, if purchased via Microsoft store then you need to load up on an Xbox console with an Xbox account that is linked to an epic account then it will sync, you cannot just purchase on the Microsoft store via pc and have it auto transfer to the epic account.

V-Bucks you purchase from the Microsoft Store can be used on Xbox, PC or mobile, but can't be transferred to or used on other consoles.

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today Ryan

Sorry to say but nope. If you want to play the game on Steam / Steam deck you need to purchase the game in their store.

Purchases are not transferible between stores

Hello DiebotGamer03,

We understand that you have an inquiry in regards to purchases on a Microsoft account, and if they can be transferred to a separate account.

Purchases cannot be transferred between accounts, but you can transfer the digital content through a license transfer on an Xbox 360.

We recommend to try following our Xbox 360 digital rights management support article for information on this.

Try this and let us know if this works.

Best wishes!

If it wa purchased on your brothers account DLC does NOT TRANSFER between platforms

Destiny 2 add-ons cannot be shared or transferred between platforms, including between Destiny 2 on the Microsoft Store and Xbox consoles. For more information, please see our Cross Save FAQ.

Silver will be shared across Microsoft Accounts on any Microsoft platform: Xbox One, Xbox Series X|S, the Microsoft Store, and the Xbox app for PC

Game share is only on consol

Keep in mind destiny has a new owner