To give what I hope is an apt analogy: Imagine you have desk where you do all your work. Every other DE handles this desk like a human would just putting stuff everywhere, moving and grabbing as needed.
This proposal and gnome in general take that desk and make it an auto-sorting desk so you can always grab what you need as fast as possible at all times without doing any organization yourself. Oftentimes I use a lot of different apps sporadically so having something that can auto-sort them is a dream come true.
The real magic of gnome is A: how pretty and polished it and the apps are and B (arguably more important): how little you have to fight it to get work done. I spend zero time thinking on gnome, I just hit the super key or three finger swipe and what I want is done. This proposal brings me even more of that. I’m like 2x more productive than my windows coworkers and most of that is due to gnome.