The question that I was answering was put out by the author of the tutorials as to what I would like to see him include in his repertoire.
You are quite wrong in your assumption that no two games require the same interface in that actual interface components are supposed to be a generic construct for any form for development. The fact that one game type may have a slightly different interface than another is rather meaningless since an interface component system should be able to be used for all types of games whereby the individual developer selects what components are required.
I recommended tutorials on developing interfaces for MonoGame, which I see as a necessity and if I could do such work myself I wouldn't be recommending this topic for these tutorials. And doing such work on one's own is quite difficult when the documentation on how to go about it is pretty much non-existent, which is a major problem in teh open Source environments where so many people seem to put out legitimate solutions without any support for how to use them. The EmptyKeys Library is a classic example of a seemingly fine product without a way to understand how it should be implemented. And believe me I have researched this topic quite extensively.
I use the Myra UI because it is the best UI available for MonoGame development that I have come across and experimented with. However, without concise documentation on its many capabilities, its use becomes a trail & error situation, which is an inherent waste of time. Fortunately, the author of this library has promised to develop better documentation as soon as time allows. And he is always will ing to answer my questions when they come up.
Nonetheless, tutorials on how to develop such interfaces using MonoGame itself, which has all of the capabilities necessary to do this type of work would go a long way to making such work a more easily attained endeavor. And it would also allow easier access to the MonoGame engine for those interested in game development.
The simulation I am attempting to create is very complex and usually requires a team of developers so anything that would make such work easier would go a long way in helping me to at least understand as to how such interfaces are created using a graphics engine.