I have an app called “Displays” without any icon in my Dash when I search for displays (the settings page).
If I right-click and choose App details, Gnome Software doesn’t recognise it. The one time I opened it by mistake, no window opened.
Does anyone know what this is or how I can discover what it is?
System: Fedora Workstation 43 (Gnome 49)
Have you tried clicking on it? I know, adventurous 
It’s Gnome Network Displays: GNOME / gnome-network-displays · GitLab
I’m using an alternative launcher which displays that name when I search for “displays” (rofi on sway).
I do have Gnome Network Displays installed (which btw doesn’t work) and it has a separate icon in Dash.
So Inuninstalled Gnome-Network displays from Gnome Software and the first app remained. Then I ran `sudo dnf remove gnome-network-displays` and it was still there. I guess there were two copies of the app installed.
I reinstalled it from using dnf and the app with the icon reappeared but not the other iconless one and it opens too. I’ll test it when I can to see if it works.
One of them might be a flatpak. Check with: flatpak list --app
GNOME searches the local collection of .desktop files, so try the following command:
grep Displays /usr/share/applications/*.desktop ~/.local/share/applications/*.desktop
Within the .desktop file, there will be at least one “Name” parameter, e.g.:
Name=Displays
(There may also be multiple declarations for other languages.)
The Exec= line declares the command to execute.
(I don’t know why your system is showing a generic settings icon for GNOME’s display settings panel.)