A monitor can replace a dock. It can also leave you buying one anyway.
A dock is a small box that lets one cable power a laptop and connect a screen, keyboard, and mouse. Some monitors can do that job. The USB-C plug by itself does not. USB-IF says that plug is not automatically charging or video. Check four things before you skip the dock.
Will it charge your laptop? The monitor has to say it charges a laptop, and that power has to be enough for yours. If it falls short, the screen can still turn on while the battery drains. Keep the laptop’s charger, or use a dock.
Will it connect your screen? The laptop port and the monitor port both have to carry video, not just power. Use a cable made to carry a picture. A cable sold only for charging can fit and still leave the screen blank.
Will everyday accessories plug in? A keyboard, mouse, or webcam can use the monitor when it has USB ports for them. If you need a port the monitor does not have, a dock still helps.
Anything extra? Wired internet needs a network port on the monitor. A second computer needs a switch for the keyboard and mouse, or you keep swapping cables. A second screen depends on the laptop, not the plug.
When those checks match how you work, the monitor can stand in for a dock. If one does not, a dock still covers that gap.
The Best 4K & 5K USB-C Monitors for MacBook Pro and Creators
That guide compares specific USB-C monitors if you are ready to shop.
Read the monitor guide