Show & tell: workflow tweaks that nobody talks about [v3]

This came up at a meetup recently and the room was split, so curious what the broader community thinks.

I want to write something more comprehensive about this later but starting with a quick post to gather thoughts. Spent the last few weekends digging into this and the deeper I go the more questions I have.

Posting this here because the relevant subreddit has gotten too noisy lately. There is a lot of conflicting advice online and most of it is from 2019. The trade-offs here are not obvious to me and I keep flip-flopping.