Help can now be provided at an App level via the ‘i’ icon in the floating bar menu at the bottom right of the screen. This is accessible from App Reports and from within Records.
This new area contains a description of what the App is used for along with the subject matter expert as well as useful learning resources for users. These can be in the form of assets and documents users can download, hyperlinks to websites with relevant material and instructional videos that have been added via AppStudio.
This was part of the most recent update, please ask your system administrator to enable it!