Isn't Ubuntu primarily a desktop distribution?
The numbers might favor server installs (no idea), but it seems like the decisions must be primarily desktop. (i.e. a server admin or business that installs a thousand Ubuntu instances is just a single decision).
Either way, if Canonical's goals for snaps included easing people into self-hosting their services, surely making the experience pleasant on desktop would be a priority?
I don't recall any positive changes brought by snaps. I was looking at it through a desktop lens at the time, but my general perspective is mostly server-side, so I might be biased in that direction.
I don't think the two perspectives are necessarily in conflict, but noted just for framing... :)