Not meant as a jab at Ubuntu, but I don't think people choose Ubuntu for engineering rigor. If you want something which is dull, predictable and known for their rigor OpenBSD, illumos, FreeBSD, etc. seem like more likely choices.
Or Debian and Redhat, which have the added bonus of being "boring technology."
If you have a problem with them, 20 other people have had that same problem before you did, two of them have posted on Stackoverflow and one wrote a blog post.
OpenBSD and Illumos may be cool, but you really need to know what you're doing to use them.
For me, it's been more about the online help suggestions you're most likely to find an Ubuntu centric answer when you have issues. Of course you also have to consider the date of a Q/A and the version in question. Since perma-switching my desktop in the past few years, I've mostly used Pop, because I like most of their UI changes, including Cosmos, despite a handful of now mostly corrected issues... They tend to push features and kernel versions ahead of Ubuntu LTS.
That said, the underlying structure is still Ubuntu centered. I also like Ubuntu server, even through I don't use snaps, mostly because the install pre-configures most of the initial changes I make to debian anyway. Sudo is configured, you get an option to import your public key and preconfigure non-pwd ssh, etc. I mostly install ufw and Docker and almost everything I run goes under Docker in practice.
