Yeah, Papers doesn't have a stable release yet since they are still doing big design changes, but you can get it through the GNOME Nightly repo. I've been using it for quite a while now!
Nope, I'm not the developer, I just found it really interesting and decided to share
As a contributor, I'm biased, but let me put it this way: it's the distro that made me so comfortable using it and with a community so welcoming, I became a contributor 😅
You might like what's coming for F40 at best and F41 at worst...
There are no cases of this that I know of. There are some developers that don't encourage repackaging their apps, though.
I haven't tried the Surface images due to not having one, but I am using their Silverblue images to make the whole NVIDIA drivers thing a bit easier on my system.
Also I haven't needed to backup my system in over a year now (I stopped hopping with Silverblue) so I don't remember the solution I used, but this seems good.
I'm really suspicious of those numbers, seeing the sudden drop in macOS and Chrome OS, but I'm hoping so much that those are accurate. Things are slowly but surely getting better.
Your loss, it's a great distribution and if you spent even a couple of minutes in our forums you'd see that the RedHat pull is due to them actually collaborating and being and active part in the community.
The only extensions I use are for things that will likely get added as native in the future: Light Style for the light shell theme and Caffeine (https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2507)
They patch GNOME to maintain the look and feel similar to Unity, which became their signature look.
Fortunately that's what the GNOME Foundation is going for, having people dedicated to applying for grants and other programs. Hopefully there's greater adoption by big companies and governments!