Provide a schema endpoint to allow querying of properties and relationships for every resource type. I recently found out that selecting properties on relationships is case sensitive, which is different from selecting properties on resources which is not case sensitive. This inconsistency is a problem for me as I am developing a PowerShell module that allows flexible querying of Microsoft Graph resources for our organisation. Users of the module have to remember the exact case for each property, which is tedious. I would like to request that Microsoft provide a queryable schema so that the module can automatically case correct selected relationship properties. Additionally, the current Microsoft documentation of available resource properties is not up to date. A schema would allow developers to access the latest properties available.