Tbh, I don't really get the hate that Ubuntu gets.
I mean, I do understand that people don't like some of the decisions made with Ubuntu (e.g. snap), but especially for people who don't use an OS for the sake of using that OS and just want to use their PC to get stuff done, Ubuntu/Kubuntu are quite good.
You have a mostly consistent UI that can do most important configs without touching CLI. Manuals and simple guides are easy to find, even in other languages than English (which is important for quite a big number of people outside the US).
And contrary to some other, smaller distros, Ubuntu isn't run by just 1-2 people and you can trust in it still existing in 10 years. (Obviously, this is true for many other distros, but some quite widly used distros are run just by a tiny team of hobbyists)
I mean, I'd get the reaction if someone claimed they are Linux users because they use Android (though with enough knowledge you can also get a full Linux distro running on Android in chroot).
Let's see... Off the top of my head: Debian, Ubuntu, yiffOS, Arch, Gentoo, Red Hat, OpenSUSE, Mint, Fedora, Tiny Linux, Mandriva, CrunchBang, Raspbian.