After the merger, Motif was included, along with CDE
and the X Window
System, as part of The Open Group's "Unix 98 Workstation" standard.
Later versions of the Unix standards dropped the GUI components
altogether.
Motif, like X, was easily used by anyone who was
an MIT CS grad
student. OpenLook might have been used by Sun Workstation
programmers, but I don't know if it ever appeared on any other
system.
At least the Xview library and olvm window manager were released as
open source, and were available on some early Linux distros. Some
other applications are still available from either
https://www.darwinsys.com/olcd/ or
https://github.com/IanDarwin/OpenLookCDROM .
I am curious to know if OLIT and/or MoOLIT ever escaped in source form.
Regards,
Branden