mkgreen

No it doesn't. Xfce components can be tried with an external Wayland compositor (I've seen mentions of labwc or wayfire) but the work on xfce/xfwm4 compositor hasn't started yet.

There are other Unix systems but by far the easiest solution is simply making sure all installed apps can still behave as X11 clients. Wayland or Xwayland is not really any issue. Few people use Xorg directly, as the new deployments usually require some form of a remote access.

These apps were written for X11 and NFS, so they can run on any node in a cluster. The were typically deployed on commercial UNIX systems and ported to Linux when Sun went belly up. In practice, I don't think porting them again will be needed. It is enough to qualify a different distribution if Redhat chose to exit the workstation market. There are already companies like NoMachine that keep X11 running.

It is not even about the access (people usually use nx or even vnc for that). It is about having a system that can work as a part of a cluster (network filesystem, X11), with all base GUI utilities (terminals, file managers, browsers, pdf viewers) supporting that.

You do, but that means there is no roundabout when you need it the most.

The problem occurs mostly when the dominant flow is given multiple lanes.

A fairly common solution/workaround is blocking the view of the approaching traffic, forcing it to slow down. But again, this doesn't work well on large roundabouts that allow people to speed up to of 30+ mph.

And so is X11. We are heading for a dual stack desktops. There are tons of expensive applications that target Linux _because_ of X11 and they will rather force users to switch OSes than get rewritten.