My first introduction to them was “hey why does startup take so long now? This machine used to be so much faster.” and realizing it was snapd that was eating up the time. It’s also not exactly efficient at using storage compared to native installs of dependencies.

For a desktop these may not be noticable but for low power embedded systems it’s a nightmare. It should be an option but really isn’t ready to be default. And when appimages are already a thing that work well I don’t really see the point.