This is the Windows 10 three finger ALT+TAB gesture in action.
What we actually do is, swipe left/right with three fingers on the touchpad to invoke the task switcher menu.
Once it’s up, we can navigate in any direction(up/down/left/right/diagonal) to the application window of our choosing, without having to even lift our fingers from the touchpad. It’s all just one continuous drag gesture. And to select an app, we simply stop touching. It’s that good
I know KDE plasma has three finger virtual desktop switching gestures, but they’re very unintuitive and I don’t want to use virtual desktops, since they’re just not as seamless.