Aircraft configuration changes alter GPWS responses. I recall A320 GPWS from many years ago where gear down at less than 1800ft/min rad alt closure rate to terrain would give "too low flap". This alert would be more typically found during a constant altitude flight during a circling approach over high ground outside the circling area with less than landing flap. Same result could be expected if other minimum altitudes or defined tracking are not respected with gear down.
I am confident that more than a few readers would find this safety warning limitation of GPWS surprising.
At some time the GPWS has to recognise that the intent is to land and this seems to be a transition from normal full flight capability to actual touchdown conditions. I accepted that there is a transition risk. Unless there have been other mode changes since, the reduced warning capacity needs consideration.