Issue description: You have set up URL redirect for your website and it works. You would like to know if there is a better way to configure it so that domain doesn't change.
Suggestion:
I checked with the internal team and they have confirmed that the way you have set it up is the correct approach and is currently supported.
Regarding your question about whether there is another way to achieve this, they have requested that you submit your feedback via the technical feedback program (UAT) - this can be done by your account team. This way your feedback reaches the product team directly and they can work with you and your account team to provide guidance on your specific scenarios. They can deep dive into ask for your scenario and include it in their product roadmap depending on the usage and requirement.
Hope that helps. Let me know if you have further questions and I am happy to answer.