FreeSync is showing up as unsupported even though the monitor supports it over HDMI. There're no options to be enabled in the monitor.
The FreeSync monitors list at https://www.amd.com/en/products/freesync-monitors lists a 246E9QD but not the 246E9QDS - is this a typo? As far as I can tell, there's no monitor named 246E9QD. Could this be the reason that I can't get FreeSync to start up?