Well....
Final Writer/Wordsworth is more than enough for crappy unusable M$ Word 2007
Plenty of competent 3D apps (if it was good enough for B5....)
Superbase Professional beats M$ pathetic Access
Scala not Powerpoint
Amiga is excellent at pixel art if 256 colours will do
DTP is acceptable
Music and video editing depends
etc
So what's the problem? There probably was a decent spreadsheet too, but as I refused to use one before 1997 don't ask for a name

There were plenty for the ST too.
In fact I could port a shitty CRM package we sell for £1500 where I work in weeks to Amiga, give me months and I could do the auto mailshot plugin too :roflmao:
So web browsers aside (which are bugger all to do with work in reality) Amiga is fine.