S11 Ultra. Swipe down to enter Dex. How to disable?

[XRayAdams]

New feature on UI8 on new S11 Ultra, when you swipe down from middle to enter Dex mode is killing me I do not need Dex to be enabled automatically! When I need it, I will enable. 
Is it possible to disable this new "brilliant" festure?

[Ruefus]

Ok, got rid of that. The other thing thats is super annoying is the little desktop icon that pops up when you press the 3 vertical lines to close open apps. It has gotten in my way and I would love to disable it. I don not want or need this annoying "feature".