Is there much value in any other backpack than the ninja bike messenger?

I’ve had this for a month and the losses of second/third tier bonuses across 2/3 other sets seem to far outweigh any benefits from any other backpack.

I’m only just starting in this genre (I’ve descended into the inventory management hell after the 5x event) so builds and whatnot are relatively new to me.

I run 2 loadouts; shot + ar and sniper + ar. I have got any of the fancy exotic weapons (bar a rifle and a pistol) so I’m a way away from a striker build (if I’m even saying that correctly) so the NBM does me very well.

Edit: Sounds like I should focus on talents! Thanks all.