In a surprise move, Ubuntu developers have agreed to stop shipping Flatpak, preinstalled Flatpak apps, and any plugins needed to install Flatpak apps through a GUI software tool in the default package set across all eight of Ubuntu’s official flavors, as of the upcoming Ubuntu 23.04 release.
It’s because Canonical has a vested interest in pushing the solution that they spent money developing.
As much as I appreciate everything that Canonical has done for Linux, this is the problem with trusting for-profit companies in the open source realm. Profit is their motivator. They don’t care that flatpak has better performance than snap, they just know they spent money developing snap, so they have to force it onto their users, despite it being the inferior tech.