Overrated edge cases after a year [v5]

Mostly thinking out loud — feel free to push back hard. There is a lot of conflicting advice online and most of it is from 2019. Long-time lurker, first-time poster.

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