Hello,
If you have a Home edition, your device cannot be joined in Entra Domain. What you see there is actually called Intune Enrollment instead. Intune Enrollment only allows your device to be registered with the organization's device management, so that your work IT can push policies to make sure your computer's security settings align with organization requirement, such as making sure your computer always updates when it is available, and you have a strong and complex PIN, and you change your PIN every x days, etc. But Intune Enrollment doesn't allow you to create a seperate Windows user using your work account. That required at least Pro edition, so that you can join Entra Domain and then log in using your work account as a separate Windows user.