In One UI 8-powered devices, users can simply drag the Multi Window border to make one app occupy a larger portion of the screen area. Remember, you could still keep two apps at a 70:30 or 50:50 ...

However, one-tap switching between apps in One UI 8’s Multi Window mode only works when the ratio is 90:10. In other words, this feature won’t work if the split-screen mode is set to different ...