Why does my screen have that glitch on the left? What's it called, and how do I fix it?

[Android Central Question]

It appears specifically on the camera-side of my phone, a Redmi Note 7. It appears when I open a game that has a landscape orientation. It appears to be red and blue rectangle specks on a black bar; while the game runs completely fine, the glitching side bothers me a lot!
I appreciate all the help and information I can get.

 

[B. Diddy]

Welcome to Android Central! It's help to see a screenshot: http://forums.androidcentral.com/ge...ide-how-post-screenshots-android-central.html

Please register on this forum, which will allow you to engage in discussion more easily, as well as post images. https://forums.androidcentral.com/ask-question/409154-join-android-central-community.html

 

[mustang7757]

You using a game launcher?

 

[belodion]

You need to post a screenshot if we are to help.