Man pages matching name xmvacreatemanagedarrowbuttongadget in section 3:

XmVaCreateManagedArrowButtonGadget.3.en	debian 10 / libmotif-dev
XmVaCreateManagedArrowButtonGadget.3.en	debian 11 / libmotif-dev
XmVaCreateManagedArrowButtonGadget.3.en	debian 12 / libmotif-dev