PLG companies acquire users through self-serve sign-up, activate them through frictionless onboarding, monetize through usage or feature gates, and expand through team-level adoption. Slack, Notion, Figma, and Datadog popularized the motion in B2B.
PLG works best when the product can demonstrate value in minutes, when individual users can adopt without procurement involvement, and when usage compounds within a team. It struggles in markets that require deep customization, regulatory approval, or top-down deployment.