If you have multiple products in your Nero account (e.g. Nero Platinum 2021, Nero Platinum 2020, or Nero Platinum Suite), Nero Platinum Suite is usually the default product and all applications in Start screen point to the individual applications in the product. 

But if you prefer to switch the default product, you have two options in Nero Start.

Way 1: Change products in the product list (available for the latest version of Nero Start)

  • Click an arrow next to the product name -> A product list will expand and all valid products will be listed.
  • Select the product you would like to run in the Start screen.

Way 2: Change products in the 'My Products' screen

  • Click the Account icon in the top right corner, click Manage my account link to My products screen. 
  • Turn on the product you would like to run in the Start screen. 

After the default product is changed, (e.g. change from Nero Platinum to select Nero Platinum 2021), you can find all applications in the Start screen point to the applications of Nero Platinum Suite 2021. What’s more, the updates also change to the given default product.

BTW, you could run all the installed Nero program from Windows Start Menu.