https://player.vimeo.com/video/751744651?h=ef3f48b2bd&badge=0&autopause=0&player_id=0&app_id=58479
When ticked, an icon will appear and the direction for the particles will be shown by an arrow in the viewport.
nxWind icon, when Visible in Editor is enabled, with the direction arrow showing the direction that the wind is pushing the particles.
Set as Standard, by default, this sets the wind type.
The alternative is Von Karman.