I know this thread is likely to quickly descend into 50 variants of "ew, snap", but it's a good write up of what is really a pretty interesting novel approach to the immutable desktop world.
As the article says, it could well be the thing that actually justifies Canonical's dogged perseverance with snaps in the first place.
I'm pretty excited about it. It's a much cleaner solution to the problem immutable OSes are trying to solve. Dare I say it's better even than the Android model because it covers the whole stack with a single system.
I don't like Canonical pushing snaps as universal apps for all distros, because of issues like sandboxing not working on mainline kernels.
But it's pretty interesting to see how a fully snap based desktop OS could look like. It might have less limitations than rpm-ostree. Easy access to recent mesa and similar would be awesome.