[emidln]

It's just mislabeled as Caps Lock and has bad default behavior. A quick visit to Preferences can sort you out.

[ghayes]

I will say, Apple at least did a good job making the remap (Caps to Esc) a really easy preferences change.

[applecrazy]

This remapping is the #1 thing that made using Vim easier. Not to mention escaping out of dialogs in macOS is much easier than lifting my hands off my keyboard.

[AtHeartEngineer]

Did this about a month ago, definitely worth it