As already pointed out in #16582, there is an inconsistency between the MVC classes in

• libraries/src/Joomla/CMS/Contoller
• libraries/src/Joomla/CMS/Model
• libraries/src/Joomla/CMS/View

and the rest of the namespaced classes. For example we suffixed the fields with Field or the helpers with Helper but the MVC classes not. So I suggest we suffix them with Controller, Model and View. Then the class \Joomla\CMS\Model\Form will become \Joomla\CMS\Model\FormModel. Additionally I would move them to the Mvc folder and rename the folder to all uppercase MVC as pointed out in #15175.

As an additional change, the extension classes should also end with the corresponding suffix, so for example the Articles Model becomes ArticlesModel.

Pinging here @Bakual, @wilsonge, @mbabker and @brianteeman for opinions.