The Amiga 4000 was late and high up the Amiga line. There were few of
them sold. Most of them were sold for use with the Video Toaster card.
Very few were just for desktop use as Commodore was losing steam at
the time.

I'm not aware of many Amiga 4000 specific software titles, at least
that weren't for video and advanced graphics. Most of the software was
able to operate on the Amiga 500/600/1000/1200/2000/2500/3000 series
of computers.

I remember PrintMaster Plus for the Amiga. I haven't used it myself. I
mainly used my Amiga for multimedia. 2D/3D Graphics, animation, etc. I
did have the Okimate 20 for the Amiga for a while. I also had it for a
C128. Simply replacing the interface module made it Amiga (and PC)
compatible. I haven't done much with color printing on the Amiga. It
simply took a lot of time with the Oki 20. When I got my first HP500C,
then I printed a lot of pictures.