What is the meaning of the "red" files in Explorer Views on Windows?

This is the predefined color syntax by the Color-Filter in the Filemanager Q-Dir, you can disable this in Explorer View Setings

How can i create a New-Folder in each explorer View?

It is very easy to create create a new Folder in the Explorer View of Q-Dir, here are the solutions and examples

How can i start with a favorite setting for explorer views from Desktop?

Is very simple to start the file manager Q-Dir whit your favorite settings, to open favorite folders in Explorer View at Q-Dir Start

How can I change the favorites folder in Quad-Directory-Explorer?

Its very easy to change the favorites folder for the alternative file Explorer for Windows 11, 10, etc. Simple, Open the ▼Main Menu ▼Favorites▼Folder. 

Color filter for files and folders in Explorer views eg MP3, but how?

The Color Syntax for MP3 Files in the File Explorer Q-Dir for all Windows OS, you can activate or deactivate it at any time

Start with last setting, no lost the File-Explorer Views and settings?

The solution to start the alternative Explorer Q-Dir for Windows with the last Explorer View settings and Columns plus Window position