How to get rid of a google search screen that pops up uninvited

My phone has been freaking out lately. Eithier russian hackers or, google sneaked something in during a download. It is a black background, full screen, has the google im feeling lucky search bar and a bunch of icons in a semi circle. It is annoying because it pops up for no reason and takes over the phone. Usually, i can get rid of it. Put i am trying to copy something from an email and everytime i try to move to the words i want to highlight and copy, this thing pops up and wont let we copy.
Is there a way to hunt it down and murder it?

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