Marked as such indeed, but 1) de facto it's far more commonly used by pedestrians than by cyclists, as people in Georgia are unused to leaving cycleways free for cyclists; 2) there is no law in Georgia that would prohibit them to walk along cycleways. So it's mapped as highway=cycleway+foot=yes, and not as highway=cycleway+foot=designated as it would be for a proper combined cycleway+footway.
