I use Ubuntu because I need intune, and M$ seems to have recognized like for like and decided that if they limit support to one the worst quality Linux distro then they can keep market share for longer as people will have a conception of Linux as something low quality and poorly built which mirror's Microsoft's own products.
Just some specific problems:
- I have never had a release update work on Ubuntu
- Ubuntu used poorly wrapped SysV init scripts as their backing for Systemd units for years, resulting in silent failures when the SysV init script errored out, as the errors were not properly recongized by systemd because whoever wrapped the SysV init scripts did not know what they were doing.
- I have rarely used something via snapd without having some problems. Most recently was with a colleague who used snapd to install docker but the result was a docker installation which did not read the docker config file from their home directory.
Fedora is better in almost every way. Fedora is not more difficult to use, it goes wrong a lot less often.
So why do people still use Ubuntu?
Ubuntu is also seen as the user friendly first entry into Linux and people who use a Debian based distribution are likely to stay with Debian derivatives rather than re-learn things on the red hat stream.
Seeing how low Linux desktop market share is, I don’t think it matters to the Linux community which is used, more important that market share increases