How to set up the remote screen control in an easy way

If you use Linux, you'd better use x11 screen setting.

Then you need to set up the x11 server, so you'll get a program running under port 5900.

Then you can use some VNC software to connect to it, so that you'll have access to the remote machine you want to control. (But I prefer NoVNC

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For other users, the simplest way is to use AnyDesk.

(For any others, use todesk is also a choice.