System Settings macOS preferences worth knowing about
Desktop & Dock

Dock size, auto-hide, hot corners, and Stage Manager. Set “Automatically hide and show the Dock” for more screen space.

Displays

Resolution, Night Shift schedule, and True Tone. Use “More Space” for extra screen real estate.

Keyboard

Key repeat rate, modifier keys, text replacements, and input sources. Set key repeat to Fast and delay to Short for snappier typing.

Login Items

Control which apps launch at startup and which run in the background. Clean this up to speed up boot.

Privacy & Security

Control which apps access your files, camera, microphone, and location. Manage Full Disk Access here.

Trackpad

Enable tap to click, three-finger drag (Accessibility โ†’ Pointer Control โ†’ Trackpad Options), and tracking speed.