Using a S9+ and I just got the One UI 2.0 update. I switched to the new navigation gestures but turned off gesture hints ( the little grey bar at the bottom) and i can no longer swip across the bottom of my screen to switch between running apps. If i turn the Hints back on though, the ability comes back.
This is a change made in the Android 10 update.
Same with me it's so annoying bc i hate the way they look. This whole time I liked how the home button is so much better on Android than iPhone bc it's invisible. Also there's a lot of bugs and missing features when you use goodlock taskchanger which is unfortunate.