How can you over-hype a one-paragraph summary?
Five minutes into the video and I'm still none the wiser as to how this is supposed to be an improvement in the use of my computer, or more comfortable, or easier.
In my opinion, it isn't.
Putting all my apps into a single line and navigating that line is not efficient. I'll stick to Autohotkey which allows me to jump to any of my usual apps with a single keypress.
I found eliminating the mouse as much as possible and finding convenient keyboard shortcuts is the key to efficient computer use. Using a touchpad which is just an other kind of mouse is not the solution. For computer newbies it may be, but not for seasoned users.