They switched focus to Windows around 1988, I believe - it was around the same time they started using the MCA bus (I believe they ended up as most successful non-IBM MCA vendor), so perhaps they had been convinced by the hype around Windows being a sort of interim OS/2?
Whatever the reason, the Qi-386 (and its ISA-based derivative Xen-i) was often combined with the Deskside Environment Pack, consisting of a trackball, infrared smartcard reader, and Win/386.
My dad's small publishing company had a bunch of them, running Aldus PageMaker and FreeHand. Lovely machines, and about half the price of the equivalent Mac IIs!