It's been on Apple products for a solid 20 years. On the PC side it totally depends on the hardware and drivers to support multi-touch

I'm glad you know it now because its so helpful! These have been around 17 or so years I believe.

And three fingers tapping is often a middle-click or wheel-click, which is often a shortcut for 'open in new tab' while browsing the web. On some linux systems it is also a shortcut for paste if in a text input field.

wait until you find out what happens when you drag your sack across it.

Thinkpads got it right with the physical mouse buttons above the touchpad.

You can also three-finger tap the touchpad to perform a middle click.

That's how you right click on a Macbook.

Wait until you realize you can smooth scroll with 2 fingers.

The amount of laptop users I see using a mouse to scroll webpages is exhausting. And I don’t mean the mouse wheel, I mean clicking and holding the down arrow in the browser.

Thinkpad nipple gang RISE UP!

Um, that's in the settings. Does nobody else obsessively adjust every setting when they get a new device? Just me?

For people using gnome: you can swipe to the side with 3 fingers to change to other workspaces, and you can swipe down with 3 fingers for the equivalent to pressing the windows button or hitting the hot corner

One of my favorite customizations on Mac is enabling three finger drag in the Accessibility settings.

Wait until I blow your mind and tell you about 3 finger drag.

Yeah the "guess where the clickable zone is" trend from smartphones turns out to actually not be that good. Multi-touch is a billion times better. There's a reason it's the default on Macs.

Wait until you realise you can side scroll, go backwards, change desktop, use the application switcher!

I use a dedicated track pad on my desktop PC instead of a mouse, specifically because of that stuff! Unless you're playing an FPS game or something, mice are just so kludgy and limited by comparison!

usually you can also double tap then hold to do a click and drag if you didn't know that

Three fingers for middle click. Four fingers to make it squirt.

Swipe with 2 fingers to scroll. Or scroll using one edge.

Depends on the touchpad

Framework laptops do this. Double finger tap is right click, triple finger tap is middle mouse button

Depends on how you configure it. There are a whole bunch more settings. The options you've discovered are tap-to-click and two fingers for rightclick. See this here: https://wayland.freedesktop.org/libinput/doc/latest/configuration.html

I really wish they would quit putting physical buttons under touchpads. Separate buttons are actually still useful. Putting them underneath interferes with the use of both the touchpad and the buttons.