Make Documentation/User Manuals Great Again!
In general latest versions of User Guides for all products are trying to be user-friendly, but this is taking its toll in form of less information. User Manuals nowadays should be considered as "Plug-and-play" quickstart guides, which are here to help customers to set up the product the way so it works. There used to be other, more in-depth written User Manuals several years ago, which were more like Reference Manuals. They covered all possible scenarios the customer could run into during the setup, they listed all errors, error messages, tips for troubleshooting etc.
Please, make the Documentation Great again - quickstart guide for the initial setup, reference manual for the complex configurations.