The Linux desktop has its fans -- I've been using it for over twenty-years -- but it's never been a mass market favorite. In part, that's because as Linus Torvalds says, "fragmentation of the different vendors have held the desktop back." Now, in a major step forward the two chief Linux desktop rivals, GNOME Foundation and KDE, have agreed to work together.
This does look quite promising so let's hope something comes from it. Generally, though the package managers create more "perceived" differences as you can actually multiple Linux desktops on the same machine. But yes its all too much choice vs say Windows and MacOs where there is really "one desktop". But it may all appear more uniform for software producers.
#GNOME GNOME and KDE work together on the Linux desktop | ZDNet
Fragmentation has long been a problem for the Linux desktop, but now the two biggest open-source desktop foundations are joining forces.