Dia is one of the best desktop browsers out there, but in terms of design, functionalities, and useful AI integrations. And it's free, as well.
Drop-down terminals make command line work efficient and easier - just press a hotkey, and the terminal slides down instantly.
If you use SSH on your MacOS device, then you should know there is a built-in SSH connection manager that is easy to call up and use.
The new Safari toolbar saves some space, but it's missing features we've had since the very first iPhone in 2007.