Ghostty has a nifty feature of a terminal window you can access easily even if Ghostty is not the active application, I believe this is called a visor - and it seems to originate from the Quake terminal, where you have this overlay terminal you can access with a key combination at all times.
So if Ghostty is running, I have an easily accessible terminal (visor).
I have mapped this to: <shift>-<command>-<t>.
The feature is called quick terminal - and it is very very useful.