With AirDrop you can wirelessly send photos, files, videos, websites, locations, and more to other nearby Apple devices and computers. Open the User's Guide here.
Go to System Preferences and tap Accessibility.
Tap Pointer Control and choose the Alternate Control Methods tab.
From there, turn on Enable Mouse Keys.
Tap Options and select 'Press the Option key five times to toggle mouse.' When you press Option x5, Mouse Keys turn on and you can use the keyboard to move the mouse.
Get more info here.
There are dozens if not hundreds of macOS shortcuts and tricks to streamline your workflow and make it easier to use your Mac.
Visit https://www.macrumors.com/guide/useful-mac-tips for lots of great ones!