Fn + e: Launches the emoji picker. When you have a writing app or a text form selected, the emoji picker appears near the cursor. If not, it appears in a small floating window. (May be app dependent.)
Fn + delete: This lets you perform a forward delete, which means you can delete the characters to the right of the cursor. It’s the opposite of the Delete key on your Mac’s keyboard.
Fn + q: Fires up Apple Notes and opens a new Quick Note, or opens your last Quick Note.
Fn + f: Toggles full-screen for the app in the foreground. If the app is already full-screen, it’ll change it to a regular window.
Fn + Shift + A: Opens Launchpad, where you can see all apps installed on your Mac and quickly launch them.
Fn + n: Shows or hides the notifications panel.
Fn + h: Hides all open windows and lets you see your wallpaper and the dock. You can press it again to return all windows to their original position.
Fn + up arrow: This is an alternative way to use the Page Up key, which works since most Macs don’t have this key. It allows you to quickly scroll up on a page.
Fn + down arrow: It’s like pressing Page Down, which quickly scrolls down.
Fn + left arrow: A replacement for the Home key, and scrolls to the top of the page.
Fn + right arrow: A substitute for the End key, which scrolls to the bottom.
Fn + a: Selects the dock. You can then use arrow keys to select apps and hit return to launch any app. It’s a way to browse the dock with the keyboard.