I'm not sure when Fedora switched to the current tigervnc systemd-based
configuration, but:
I've been using tigervnc to log in to an Ubuntu box, and it was simple to
set up tigervnc on Ubuntu for remote access. I just tried the same on Fedora
and was informed that launching vncserver was "deprecated", and pointed
towards the documentation for Fefora's systemd-based configuration.
Reading through that, the following limitation is a showstopper for me:
# # Limitations
# You will not be able to start a Tigervnc server for a user who is already
# logged into a graphical session.
That's a no-go for me. My Fedora system is configured to automatically log
into a graphical desktop. This won't work for me, then.
This is not a limitation on Ubuntu. It's too bad that Fedora cannot do the
same.