The problem with that model is that it puts the burden on the distro maintainers to package every possible application for their distro. And application developers have to essentially wait for each distro to repackage their app before it becomes available on that distro. Or start messing with alternate repositories for each distro they want to support.
The old model works for established software, but breaks down a little now that it becomes easier to write software applications.
Personally I use my distro packages for foundational stuff (DE, systemd, tools and utilities) but I use an alternative package manager (flatpak) for most other applications.
What Flatpak, Snap and AppImage try to achieve is to limit the packaging burden for both distro maintainers and application developers, so that end-user applications can become immediately available on a wide variety of distros.
The old model works for established software, but breaks down a little now that it becomes easier to write software applications.
Personally I use my distro packages for foundational stuff (DE, systemd, tools and utilities) but I use an alternative package manager (flatpak) for most other applications.
What Flatpak, Snap and AppImage try to achieve is to limit the packaging burden for both distro maintainers and application developers, so that end-user applications can become immediately available on a wide variety of distros.