How long is the video supposed to be?
The amount of info shown and music style depends on that.
As a rule of thumb, the shorter the video, the more high energy and unique it must be to stick in the viewer's memory.

Don't give up on 3D!
We can still use it to make the video more understandable. Take a look at the Gnome 40 promo
They used 3D to make it more understandable like showcasing the keyboard shortcuts and mouse gestures, instead of going "ooo! take a look at this new thing!"
@aronkvh , the references you sent are awesome, though I don't think we can be that good.