Almost everything that you might get from oh-my-zsh is built in and it's _much_ faster. I've been using Fish for a few years now and I love it.

I don't really use `oh-my-zsh`, I just built my own prompt. It's pretty snappy, so I don't feel a huge need to switch, but maybe on a slow day I'll install fish to give it a whirl.

not OP but the two features of fish that stood out for me so much that I make it my default shell on remote servers are

1) the autocomplete suggestion as you type a command [1]

2) scrolling thru commands after partially writing one only shows entries that match the written text

3) knowing if a command will work before pressing enter -- saves from a lot of gotchas.

all of these read like features nice to have but not essential, but when you're using something every day, it's worth it :)

[1]: https://fishshell.com/docs/current/tutorial.html#autosuggest...

I moved from zsh + oh-my-zsh to fish a couple of years ago.

The main reasons were:

1. It had a lot of qol features I liked from zsh _by default_ without requiring a significant config

2. Prebuilt zsh configs like oh-my-zsh have been pretty commonly quite slow in my experience, which fish fixes.