What do different build actions in csproj do. That is, additional files or fakes

Question

What do the various build actions in the Web API project do (can also apply to other types)?

I see: no, compilation, content, embedded resource, additional files, CodeAnalysisDictionary, ApplicationDefinition, page, resource, SplashScreen, DesignData, DesignDataWithDesignTimeCreatableTypes, EntityDeploy, XamlAppDef, fakes

I found similar questions in StackOverflow, but they do not refer to any Microsoft documentation or do not contain all the elements. Ie what do extra files or fakes do?

"What are the various" Build Actions "settings in the properties of a Visual Studio project and what do they do?" has an incomplete list.

Yes, I really looked and can not find it in the documentation.