It has no resemblance whatsoever with a trackpad.

I use Wacom Intuos S graphic tablets, on Linux. These are cheap tablets without screens, with a USB or Bluetooth interface.

These tablets have the same size as a traditional mouse pad, so they do not take more size on the desk than a mouse.

The stylus is extremely light, so I can keep it between my fingers while touch typing with all fingers on the keyboard. Thus I can transition between typing and pointing much faster than with a mouse, where I have to grip the mouse or release it.

I configure the tablet in "Relative" mode, where the operating system sees it as a mouse and there is no difference in behavior between it and a mouse.

I configure the stylus to emit a "left click" when I touch the tablet with its tip. The stylus has 2 buttons that can be pressed with your index. I configure one to be "right click" and the other to be "double left click". You can choose any other behaviors.

Holding the stylus is much, much more comfortable than holding a mouse, because of the natural position of the hand.

Moving the cursor with the stylus is much faster than with a mouse. I can move it across the screen from corner to corner instantaneously, because the stylus is much lighter than a mouse, and there is no friction, since it does not touch the tablet, unless you use it to select an area.

The positioning accuracy is much better than with a mouse. If you desire so, you can do handwriting, e.g. signatures, or make drawings with it, which of course is not surprising as this is supposed to be a graphic tablet.

I tried this initially only hoping for a better comfort, because my hand was hurting from the excessive use of mouse all day long. But then I discovered that not only it is very comfortable, but also much faster and more accurate than a mouse can be. Therefore I do not intend to ever use a mouse again.

Trackpads are more comfortable than mice, but they are much slower, so they are not competitive for things like drawing electronics schematics, which I do from time to time. While trackpads, like touchscreens, do not have the inertia problem of a mouse, it is absolutely impossible to move your fingertips with the speed with which you can move the tip of a stylus, which amplifies the amplitude of your finger movements.

There are too few programs which know to use "mouse gestures" for the user interface, e.g. some expensive CAD/EDA programs or the Web browser Vivaldi.

Mouse gestures are already better than any trackpad gestures, but when you use a stylus they become even better, as they are pretty much the same movements as in handwriting.