/usr/share/glib-2.0/ is in cinnamon-settings-daemon 3.6.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/glib-2.0/schemas/
/usr/share/glib-2.0/schemas/10_cinnamon-settings-daemon.gschema.override
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.enums.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.peripherals.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.peripherals.wacom.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.plugins.color.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.plugins.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.plugins.housekeeping.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.plugins.media-keys.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.plugins.power.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.plugins.xrandr.gschema.xml
/usr/share/glib-2.0/schemas/org.cinnamon.settings-daemon.plugins.xsettings.gschema.xml