By default, when you open the Windows 10 Start menu, you will see the recently added applications at the top part of the application list. This section will list some of the most installed applications recently. If you want to remove them, it's easy. See how you can do the process.
In Settings, click on "Personalization".
In Personalization, click "Start" in the sidebar.
In the Start menu settings, find button Click "Show Recently Added Apps" to turn it off.
The next time you open the Start menu, the recently added applications section at the top will be gone. You will no longer be reminded of all the applications you have recently installed, but of course you can find them in the "All Apps" list or by using search box in the Start menu.