How to organize my projects?

Hello, I have a bit of a problem understanding how to organize my projects and custom domains. I have an Appwrite console on the domain appwrite.mydomain.com, and for each client, I have created a separate organization. I would also like to create a subdomain for each client, which will be their endpoint - for example, client.appwrite.mydomain.com, but I’m not sure how to approach this, as custom domains can only be created in the project, not in the organization. So, should I create a new project within the organization, then create a custom domain client.appwrite.mydomain.com in it, subsequently log in on this domain, create a new project again, and start creating my databases, functions, documents, etc.?

I’m new to Appwrite and development, so I apologize if this is a stupid question.
Thanks in advance.

Why does each client need their own subdomain?

Not necessarily I guess, but we would like to use custom domains to separate projects.

The projects are already separated by organisation

Custom domains are really to help with third-party cookie issues. Even if you set a Custom Domain on a project, you could still request on any valid endpoint and I think it would work?