Option to Use OS's Dialog Boxes

Since Blender is now integrating better with OSs and providing options like drag and drop, it would be also nice to have the option to open/save files using the OS's built-in dialog boxes.

Having the OS's quick access menu within Blender's dialog box was very welcome, but I also have scripts that automate the way I use dialog boxes. Also, they are more familiar to users and simpler in many ways.

I don't think that adding such a feature would be too difficult to code or that it would require much maintenance.