Comment by opan

>it seems to know when I've run a command in one tab/split while another is open where fzf doesn't seem to sync it all the time.

On my machine this is handled in zsh, not fzf (but then fzf still benefits). You can configure your shells to sync without exiting. You may need to run one command (or just hit enter with nothing typed, maybe) for the shell history to catch up, but then it should all be there. Relevant options:

# share history among terminals

setopt share_history

# append to the history instead of overwriting

setopt append_history

# append to history incrementally instead of when the shell exits

setopt inc_append_history

I think finding out about this is why I originally switched from bash to zsh several years ago.