Desktop users who last used, and liked, Ubuntu during the pre-Unity/pre-GNOME-3/pre-Wayland era (before 2011 or so) may not like it so much these days.
It's a very different default experience now.
While I have fond memories of the earlier releases of Ubuntu, the more modern releases have been pretty much unusable for me any time I've tried them, unless I redo the default desktop environment with something sensible. Snap certainly hasn't helped the overall usability, either. Having to make so many changes pretty much defeats the purpose of using a distro in the first place.
I've also helped several non-technical and semi-technical macOS and/or Windows users who've wanted to try Linux. The ones who wanted to try Ubuntu first ended up much happier when I eventually introduced them to KDE running on X.
It's a very different default experience now.
While I have fond memories of the earlier releases of Ubuntu, the more modern releases have been pretty much unusable for me any time I've tried them, unless I redo the default desktop environment with something sensible. Snap certainly hasn't helped the overall usability, either. Having to make so many changes pretty much defeats the purpose of using a distro in the first place.
I've also helped several non-technical and semi-technical macOS and/or Windows users who've wanted to try Linux. The ones who wanted to try Ubuntu first ended up much happier when I eventually introduced them to KDE running on X.