I do greatly appreciate my management and general company tech culture, they're great.
I agree with your stance here, because it's part of my point. I tend to see more people bitching about Agile itself and not management or their particular implementation.
The jobs where I was only given enough info to plan 2 - 4 weeks out were so stressful because I frequently felt like I was guessing at which work was important or even actually relevant. Hated it.
Turns out it's a skill issue ;p (on the management level to be clear). Folks, don't let your lazy managers ruin you on a system that can be perfectly fine if done right.
It's all about context. If you write a convenience function and put it in zshrc, scripts you run from the cli will not have access to the function as defined in zshrc. Same with aliases added by zsh plugins etc.
If you need "the thing" on the command line, zshrc. If you also need it in scripts you run from the cli, toss it in the profile file.
ETA: I personally keep the functions I want to access from scripts in .zshenv as I recall reading that this file is ALWAYS sourced.