I believe in the open-source world, this is called “mission creep”. It means when a project gradually expands its scope and mission until it becomes unmaintainably broad.
They are not. I do not refer to the package called “LibreOffice”. If you search for “office” on the Windows Store, you’ll see a bunch of LibreOffice clones that are not branded as such and are not free of charge or contain advertisements.
The Windows Store limits the number of machines that you can install paid software on to 10. If you are managing a lot of computers you’d be better off with some actual management software or at least a package manager like Chocolatey. Then you can push software to your machines, run updates, or uninstall stuff whenever you like.