90 degree lines at bottom corners when swiping to go home?

[Rockyah86]

When I swipe to go home from an app or recent, I notice corner lines at the bottom of the screen corners for a second or Two then they disappear. I feel like it's a setting for a feature I need to turn off. Anyone know what it is? Other than that, everything has ran very well. Very fast, as if the phone is new again. 

[brandonl2748]

Its the new way to access Google Assistant. It's part of Android 10

[SamsungUSABetaTeam]

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