Enjoy 😊
Minecraft Legends (PC) - CGK39-TM9VM-YKJG3-TMKQT-3QYTZ

This guide is from the Prime Gaming page

From the Microsoft Store:

• To claim the game, open a Windows 10 or 11 device and search for "Microsoft Store".
• Ensure that you are signed into the Microsoft Store under the account you wish to play Minecraft Legends, then select the Account button in the upper-right corner, next to the search bar.
• A menu will open with the option to "Redeem code or gift cards".
• Select that option, input the 25-character code, and click "Next" to link the content to the account.

From a Microsoft account:

• Follow the link here: https://support.microsoft.com/en-us/account-billing/redeem-a-gift-card-or-code-to-your-microsoft-account-d6b2c675-9e31-f312-7ff4-21834ad22fa8
• Select "Redeem Code".
• Enter the 25-character code, select "Next", and follow the prompts.