Currently in ArcGIS Pro, while using Branch versioning, the default "Access" level can only be changed by the geodatabase administrator. This restriction is unnecessary and burdensome. I would like to propose ESRI change the minimum account level required to perform this modification to the data owner account of the dataset. This would more similarly model traditional versioned database access permissions. This also follows the principle of least privilege. If an account can create/update/delete a feature class (data owner) the same account should be able to modify access to the default of the same data.