Not strictly, but the original plan was to have Microsoft market OS/2 2.0 to the clone makers. So when MS walked away, IBM didn't have a good story for 3rd part

Not strictly, but the original plan was to have Microsoft market OS/2 2.0 to the clone makers. So when MS walked away, IBM didn't have a good story for 3rd parties. OS/2 2 had drivers for stuff with names like "IBM 3142" and you had to know whether that was the equivalent of an Adaptec SCSI adaptor or HP LaserJet printer. The association with PS2/MCA certainly muted OS/2's reception though.