Hello @ChristophKoschmieder and thank you for your suggestion of creating an explicit data type for ArcGIS Pro projects!

We appreciate your feedback and are interested in learning more about your specific use case(s) for this data type. Could you please provide more details on how this would benefit your workflows and what specific tasks you would use it for?

Understanding the context and needs of our users helps us prioritize and design new features that can provide the most value.

Thank you again for your input, and we look forward to hearing back from you.