This may need more investigation, but so far this seems to mainly affect function/actions.

Taking a look at some of the OData functions/generations generated from using this file as input, the following can be observed.

• Class names and constructors may not respect C# guidelines as the class name doesn't match file name itself and looks like a namespace declaration (See hereand here)
• The creation of a Microsoft\Graph subfolder may lead to namespace collisions due to the Microsoft prefix being used together with imports from the abstraction libs (which also start with Microsoft)
• Some functions e.g. Delta end up with parentheses in the folder name and namespace declaration e.g here and here

AB#11137