I'm on Fedora Workstation 30 (with GNOME).
Since upstream GNOME doesn't seam ready any time soon to deliver a workable alternative to the traditional system tray on which many applications still relies, I think that Fedora Workstation (which comes with GNOME) should consider to include by default one of the GNOME shell extensions that provides the service.
This missing feature in Fedora Workstation makes many third-party applications/services (Nextcloud, Telegram Desktop, Dropbox, Skype, Steam, Variety, Discord, Slack, Insync, etc.) almost unusable. Most (if not all) others Fedora spins / Desktop Environments (KDE, MATE, XFCE, etc.), provide support for tray icons /appindicators. Ubuntu, which also relies on GNOME shell, also manages to offer this feature through a preinstalled extension (see below).
I think it is fair to say that most users would see such a feature as a basic one, that should be supported out of the box, without having to go through the installation of an extension.
The right extension to include is probably KStatusNotifierItem/AppIndicator Support, since it seems to be actively maintained, as it is also included by default in Ubuntu: https://extensions.gnome.org/extension/615/appindicator-support/
There is also other extensions (like Topicons - with variants plus or redux), but it's not clear if they are still maintained and they only provide the legacy tray icons service, not the new appindicator service. Probably not the best option.
I had to switch folks from Fedora to Ubuntu only because Ubuntu supports sys tray app status indicators and Fedora 30 (now 31) does not support it. I agree with mlaverdiere. Skype and Slack and other useful office applications really need this feature for productivity reasons. Ubuntu (now 19.10) provides this feature by default, so does Mac OS X, and so does Windows 10. If and when Fedora provides it again in the future, I will have everyone switch back to Fedora. Other than that, I love Fedora (and RedHat).
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Obviously, it is an ongoing bug, still present in Fedora Rawhide (and current Fedora 34 beta). Again, the absence of such a feature in Fedora Workstation makes it hard (or impossible) to use a lot of application/services that relies on a system tray/appindicators icon and forces user to go the extra steps to install the extension themselves. Not user friendly...
Easy solution: integrating: gnome-shell-extension-appindicator (which works with Fedora 34 and, being well maintained, has always work with previous GNOME/Fedora version): https://github.com/ubuntu/gnome-shell-extension-appindicator