Man pages matching name xkballocgeomsectiondoodads in section 3:

XkbAllocGeomSectionDoodads.3.en	debian 10 / libx11-doc
XkbAllocGeomSectionDoodads.3.en	debian 11 / libx11-doc
XkbAllocGeomSectionDoodads.3.en	debian 12 / libx11-doc