Non-corporate users use Ubuntu? Last time I tried it, I have encountered bugs on day one, and I nearly instantly switched to random distro with KDE (openSUSE, which also I dislike btw).
Also I have very ‘fond’ memories of using it in about 2011-2013 where the program crashing message is burnt into my mind, because how often it appeared, and sometimes even the error reporting tool was crashing for some reason.
You mean Certified UNIX 03 operating system, and only when you modify the system so much, that it becomes unusable.