/usr/include/libqmi-glib/ is in libqmi-glib-dev 1.12.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/libqmi-glib/libqmi-glib.h
/usr/include/libqmi-glib/qmi-client.h
/usr/include/libqmi-glib/qmi-device.h
/usr/include/libqmi-glib/qmi-dms.h
/usr/include/libqmi-glib/qmi-enum-types.h
/usr/include/libqmi-glib/qmi-enums-dms.h
/usr/include/libqmi-glib/qmi-enums-nas.h
/usr/include/libqmi-glib/qmi-enums-oma.h
/usr/include/libqmi-glib/qmi-enums-pbm.h
/usr/include/libqmi-glib/qmi-enums-pds.h
/usr/include/libqmi-glib/qmi-enums-private.h
/usr/include/libqmi-glib/qmi-enums-uim.h
/usr/include/libqmi-glib/qmi-enums-wda.h
/usr/include/libqmi-glib/qmi-enums-wds.h
/usr/include/libqmi-glib/qmi-enums-wms.h
/usr/include/libqmi-glib/qmi-enums.h
/usr/include/libqmi-glib/qmi-error-types.h
/usr/include/libqmi-glib/qmi-errors.h
/usr/include/libqmi-glib/qmi-flags64-dms.h
/usr/include/libqmi-glib/qmi-flags64-nas.h
/usr/include/libqmi-glib/qmi-flags64-types.h
/usr/include/libqmi-glib/qmi-message.h
/usr/include/libqmi-glib/qmi-nas.h
/usr/include/libqmi-glib/qmi-oma.h
/usr/include/libqmi-glib/qmi-pbm.h
/usr/include/libqmi-glib/qmi-pds.h
/usr/include/libqmi-glib/qmi-proxy.h
/usr/include/libqmi-glib/qmi-uim.h
/usr/include/libqmi-glib/qmi-utils.h
/usr/include/libqmi-glib/qmi-version.h
/usr/include/libqmi-glib/qmi-wda.h
/usr/include/libqmi-glib/qmi-wds.h
/usr/include/libqmi-glib/qmi-wms.h