Canonical is a ripe target. Canonical has been trying to grow Ubuntu and other tools in the enterprise world for the last few years without significant success, and much of the Nvidia devkit stuff is built around Ubuntu.
As someone who has used Ubuntu in the past and has now moved onto greener pastures, I appreciate everything Canonical and Ubuntu have done for the Linux community but there are many better options today and Canonical is already far from the company it once used to be.
There have always been better distributions than Ubuntu. That isn’t something new. What Canonical did better than anyone else was mass market appeal. Or at least appeal to a wider market than Linux traditionally had. But as someone who’s used Linux since the 90s, I was always underwhelmed by Ubuntu as a distribution.
That all said, I have to work with a lot of CentOS and Rocky workstations for VFX and I enjoy those for desktop Linux even less than Ubuntu.
Tbh, Ubuntu’s only pull is the support and breadth of users. As a desktop, it’s let down by Unity, which IMHO is basically a port of Windows 8 tablet UI.
If they defaulted back to a menu and taskbar-based WM, it might actually be more approachable to users who are more familiar with macOS and Windows.