Gestures won't work on all existing PCs but will work near perfect (if not perfect) on devices with precision touchpad. Some PCs may not have precision touchpad but its manufacturer could have installed some drivers that will make gestures work.
To enable or disable gestures, go to Settings > Mouse & touchpad. Here you can switch on the gestures that you want and off the gestures you don't want. You can also select what a three finger tap does (on default it opens Cortana) and also what a three finger drag should do (on default, you can switch between apps).
If your PC doesn't have precision touchpad but gestures do work, then you will be able to do your set up somewhere in touchpad utility settings on your PC.
In order to enjoy the usage of gestures on your PC, check if your PC has precision touchpad before you purchase.