I’ve seen people suggest Ubuntu without mentioning Kubuntu, but it seems like most people (especially gamers?) prefer KDE Plasma. I’ve seen people complain about Ubuntu’s GUI and lack of customization, but then no one suggests them to try Kubuntu instead. It seems like people just don’t know that Kubuntu exists.
Also as an aside, people often criticize how slow updates are on Ubuntu/Kubuntu/etc, but if you enable the backports ppa then it’s actually pretty quick!
sudo add-apt-repository ppa:kubuntu-ppa/backports


*buntu are mainly beginner distros. They work fine out of the box, but many long-term users don’t like them for ideological reasons.
The main advantage of Ubuntu over any other distro is that everything as an Ubuntu guide. The same is not true for Kubuntu, and if you stay in GUI, Ubuntu and Kubuntu share almost no similarities. The settings, the pre-installed default apps, all that differs greatly.
Thus the main reason for using *butnu is gone when using anything else than Ubuntu.
Which kinda sucks, because I like KDE much more.
Except UwUbuntu. We don’t speak of that thing here, or anywhere.
Edit: that was a bad joke, but it seems something like it (UwUntu) does exist! https://uwuntuos.site/
My people
They aren’t. Canonical enshittifies Ubuntu and the official flavors more and more. The hoops one needs to jump through (like OP’s PPA command because Canonical forbids proper updates) are not user friendly.
Steam Survey shows how Ubuntu’s relevance for home users continues to shrink and alternatives like Bazzite continue to grow.
These hoops don’t matter for beginners. They are usually fine with what Ubuntu provides, or more to the point, don’t even know what they might be missing.
Steam Survey is quite skewed by only showing what gamers use. That’s quite a hefty selection bias, and of course it shows that gamers prefer the Steam Deck and gaming distros.
This is /c/linux_gaming. Recommending a distribution with outdated Mesa drivers is not in their interest, whether they know what they’re missing out or not. That’s among several reasons why Ubuntu in general is not a good recommendation for gamers.
Fair point about /c/linux_gaming. OPs question wasn’t really about gaming though and it was specifically about ubuntu/kubuntu.
So if anything, the OP should not have been in /c/linux_gaming, but the answers are on topic.
But even in regards to gaming, Mesa drivers are stable enough nowadays that even a bit outdated ones don’t make a lot of tangible difference unless you are hunting for every last frame. In which case a beginner’s distro isn’t for you anyway.
The average casual gamer will have no issues with Ubuntu.
Average casual gamer will have even fewer than “no” issues with Bazzite. There is no reason why (K)Ubuntu is preferable these days.
Apart from if they are going to use their PC for anything else than gaming.
Why would Bazzite be worse for everything else than gaming? It’s literally just a Fedora variant with some quality of life stuff preinstalled. All the stuff that (K)Ubuntu requires jumping through hoops (most notably Flatpak) is preinstalled and the entire software repository is officially supported unlike Universe in Ubuntu (KDE software is in Universe, hence why the backports PPA is pretty much mandatory).
It’s immutable Fedora. Immutability is something that not even regular Fedora uses, because it causes weirdness and potential trouble if you don’t just use it as a wrapper for flatpak.
I think Kubuntu is fine for beginners. Nvidia support is good, everything runs on it, and it’s got a stable release cycle
The distro itself is fine for beginners. But the main advantage of Ubuntu over e.g. Linux Mint or Brazzite or any of the other beginner distros is that if e.g. third-party software has a guide on how to use it on Linux it’s almost always about Ubuntu. That is the real advantage of Ubuntu. Kubuntu doesn’t have that.