Yes, that’s pretty much the points. For instance:
Opus lets you drain corp money if they try to make traces, and make the money needed fast enough to deal with the important assets. It lets you come back from 0, and Rabbit Holes help.
Andy makes a ton of money with Sec Testing/Temujin, and wins money races via Siphon, but is less consistent because you need a good start vs just an Opus.
Whizzard makes money via his ID and Employee Strike/Slums act as link does, turning off CTM’s ability. Sometimes there’s a bad start and you don’t get rich, and it’s hard to come back from 0 - which is why this is probably the most high variance of the strategies (but often the most one-sided when it works).
Edit: Don’t get too obsessed with link. Each point of link counts as 1 recurring credit to trash things vs CTM, and helps a bit for some ice. Rabbit Holes in Kate are like 5 credits for 3 recurring credits for trashing things. But this will only help if you have a ton of money to trash things with anyway, hence Opus.