To add to the above
Gfx:
PPaint
TVPaint
Imagine
Cinema4d
VistaPro
Real3D
Video:
FroggerNG
Moovid
Riva
FFMpeg
Deluxe Video
Office/DTP/etc:
Pagestream
Final Writer
Professional Page
PenPal
Programming:
AMOS/Pro
Blitz BASIC/Amiblitz
SASC/C
Hisoft basic
Devpac
Macro68k
ASMOne
gcc
Aztec C
and about a million others
As alluded to already quality productivity software was plentiful on the amiga. All the above is just a small selection of the "A grade" type stuff,... in no way anything resembling a full list.
Its funny. Amiga became popular because of games, but its the quality of its serious software that really makes it shine (in my opinion at least). Had it relied soley n gaming it wouldve died a good 5 or more years earlier than it did.