You got me there. htop is probably the one terminal app that I regularly use that has important FN keys. Still I bet only one out of 5 times do I actually use the FN keys in htop. I suspect that of the amount that I use them, Apple's access to old function keys via the Touch Bar will be fine for me.

(And I can always pull out my Happy Hacker Keyboard)

Its very easy to remap keys in OSX. Its in the Keyboard Settings.

so the understanding here is that everyone is just going to remap esc?

Up until macOS 10.12, it was difficult to remap the ESC to CAP LOCK. Now it is an option in the keyboard settings.

My biggest complaint is since macOS Sierra, it is now so hard to create a Hyper-key.

http://brettterpstra.com/2016/09/29/a-better-hyper-key-hack-...

Esc quits htop on Mac OS? That's really odd. I've gotten used to Ctrl+C on Linux.

ctrl-c sends a SIGINT to the terminal, it's not a quit command. F10 is the original quit for htop along with F6 being sort, F3 being search, and so on

I understand, but it still has the effect of quitting.

workarounds exist sure, they aren't replacements for that app's workflow

q for quit in htop on ubuntu