This is needed for fractional scaling.
Alterantively, we can look at just backporting the new keys that are needed
Done in gsettings-desktop-schemas-3.24.1-1.el7
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.