what is this? how this is formed on the launchpad and how to remove it?

dotcompals wrote:

what is this? how this is formed on the launchpad and how to remove it? - thank you

https://discussions.apple.com/content/attachment/67fa0bfa-1030-4854-8c74-868019c5c5fc

I do not know what they are or were but according to the Official Apple Support Documentation Use Launchpad to view and open apps on Mac - Apple Support (CA)

Excerpt from above link which is insightful

Add apps to Launchpad

Apps that you download from the App Store automatically appear in Launchpad.

To add an app that you didn’t download from the App Store, drag the app to the Applications folder in the Finder on your Mac. The app is then shown in Launchpad.

Remove apps from Launchpad

1. In Launchpad, click and hold an app until all the apps begin to jiggle.
2. Click the app’s Delete button .
3. If a Delete button isn’t shown, the app can’t be removed from Launchpad. See Install and uninstall apps from the internet or a disc.

If you're asking why the question marks: If the Dock on your Mac contains a question mark - Apple Support