
Hello and Thanks for your question.
Azure does not allow you to directly change the domain of your home organization once it is created.
You can workaround this by creating a new tenant with the correct domain and migrating resources.
https://docs.azure.cn/en-us/entra/fundamentals/add-custom-domain
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola