From an app developer and a distro maintainer point of view snaps/flatpacks are just better in almost every regard. It seems insane that each distro spends time building and maintaining packages that should just be in a container and ready to go.
There are some disadvantages but would you rather the developers spent time fixing bugs and adding cool features or would you rather they spend their time packaging stuff up to support half a dozen different distro packaging formats. These are the choices devs are having to make but there's no need- put it in a container, have a stable environment that runs everywhere, done.