I think part of that with BB is that it takes place over a very short amount of time (like, under two years?). Not that there isn’t time for growth, but it’s pretty non-stop of just Stuff Happening as Walt just chaos-gods his way through things.
It’s always got the throttle down and so there’s very little reflection time. Like, all the Sopranos’ action moments just back to back.
Additionally, they require a lot of rest and need to be rotated out more frequently than humans. Nazi Germany was very dependent on draft animals on WWII and the logistics were nuts.