How do you remove floating back button key on screen?

[AC Question]

For some reason - presumably a recent "upgrade" of Android or Axon 7 software - a translucent back button has appeared on my screen which is constantly getting in the way - and even shows on screen shots!!
Given Android phones have fixed back keys, this is useless, irritating and unwanted (by me, anyway). Does anyone know how to remove it?
Many thanks for any advice!

 

[anon(238680)]

Welcome to the forum. I believe there's a setting to disable that, not sure where. Try Settings, Display.

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[ajay sapra]

Go to settings, system, system navigation, turn off navigation dock

 

[JoJo-chickrock]

Musician

I'm thinking it might be with how you set up key board. Go to where you change style of fonts brightness and size of don't. It should be there. You can also turn off key sound there too.