My workplace preinstalls Ubuntu, personally I’m using openSUSE. I don’t even think that Ubuntu is particularly bad, I’m mainly frustrated with it, because it’s just slightly worse than openSUSE (and other distros) in pretty much every way.
It’s less stable, less up-to-date, less resilient to breakages. And it’s got more quirky behaviour and more things that are broken out-of-the-box. And it doesn’t even have a unique selling point. It’s just extremely mid, and bad at it.
I’ve got some wasps living in the railing of my balcony. They don’t care that I’m sitting there at all…