My suggestions for implementation
- Change the appearance of the avatar frame between the square and round stylized for Windows 10 and larger avatar frame
- Larger icons for items on the right side of the menu
- Icons on the left for the right-hand side menu names
- More predefined start buttons
- Ability to add your own shortcuts, location to the right of the menu
- You can add a command line to the right of the menu
- Possibility to change submenu to dark style
- Can set the same color and transparency instead of the white menu page
- Sort the Applications folder by name just like regular folders in the menu
- You can choose whether to use Modern UI applications in the Applications folder or as shortcuts