I'm running qgis 3.0.3 in Fedora 28 and I seem to have several, related problems with plugins.
Plugins --> Manage and Install Plugins: the window that opens shows 7 pre-installed plugins (I think there used to be 8 before, how come?).
Under the Settings tab, it says that "no python support detected, thus no settings available"
What dependency am I missing on my system?
Also, the search from the search field doesn't seem to work, it searches only through the 7 available plugins.
I downloaded a plugin from qgis and extracted it to
/home/myyser/.local/share/QGIS/QGIS3/profiles/default/python/plugins but it's not being loaded.