People are always joking about windows having that "windows is not activated, plz fix" watermark that's always showing up on top of displays in public, but these days Linux has that sort of annoying watermark nonsense too, it's just phrased a little different.
@foone for everyone else in this thread still suffering through this "Snap all the things" era of Ubuntu, give "unsnap" by @popey a try (or just migrate to another reasonable distro like #Fedora or #Debian):
https://github.com/popey/unsnap
