Still it's an improvement over the current situation. Using snap IMHO only makes sense with closed-source or Open-source software that you don't want to self-compile but at the same time there is only a package available for a different distribution. So a typical installation procedure might be to forcibly install it with dpkg while ignoring the dependencies which cannot be resolved automatically. (Or worse, convert rpm to deb and then install it...) Of course the source is still downloadable, on the other hand, reproducible builds are anyway far from standard. I would prefer snap any time over other more crude installation methods if compiling is not viable.

That's not the difficult part. The hard part is compiling a program that doesn't depend on Glibc 2.X when your users only have 2.6 or use Musl or whatever.