I think people do too many exercises, especially for small muscles like biceps. I don't see the need for 5 different exercises or whatever. One exercise might be plenty or even optimal, all there is for direct bicep work is curls anyway, there's not necessarily a need to hit it from "many angles" in the same workout.
I remember a Tom Platz leg routine he wrote about. It was 2 sets of 50 reps on squats, that's it.
Quality over quantity, always.
Regarding deadlifts for back that was mentioned. There's a bunch of experts who say it's not a back exercise period. Does nothing for upper back, there's little to no movement for the upper back and lat muscles, and it's just a static hold when it comes to the erectors too. Now I love deadlifts, they are like a religion to me, but I see their point anyway.
Deadlifts are mainly a hamstring and glute exercise.
There's this guy named Doug Brignole who talked about it. Said that to train the erectors you should do a certain type of rolling motion with you lower back with no weight at all, that way the erectors actually move, stretch and shorten
the videos are on youtube. This fella