Right, I still remember the dotted XaW scrollbars that would scroll a little or a lot depending on where you clicked them; and playing Freeciv with XaW in my early Linux days. Good times.

Motif was even released as open source OpenMotif, but faaar too late. The whole Xt architecture in general seemed like an overcomplex solution looking for a problem, and it was easier to either use Xlib directly or go the gtk route.