When downloading an app, the app icon doesn’t appear on the screen once downloaded. I have to go to the play store to open the app. Any suggestions? Using a Samsung Galaxy s9. Thank you.

After downloading the Twitter app, the app icon does not show up. In the past, when an app was downloaded, it would appear the the app drawer as well as the home page. That is not the case anymore. I have to go to the Google play store and open the app from there. Any idea on what is happening? I am using a Samsung S9. Thanks.