How to remove extra shortcuts from Activity in Android Studio?

Question

Android

Good afternoon! I didn’t develop anything for three years and decided to take up a hobby again)
There are 5 activities, and when installing the application, they created 5 shortcuts with the same titles. How to remove everything but the main one? In the manifest some line can be added.
Also, in parallel with this, the transitions between activities are carried out as if a new application is being launched. How can I remove this animation?

Answer 1

In Androidmanifest.xml
leave lines like

<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />

only for the main activity.