Amplitude populate a fake user dashboard as a part of their onboarding process. You can actually see how your own dashboard will look like once you will integrate their snippet and add events. At the top, they show a bar where they mention that all of this is a fake data. Amplitude is very well known for its pretty graphs. They use a library called Highcharts for their graphs. In this screen, there are multiple Line Charts and a Bar graph. Amplitude users track numbers like growth, MAU, DAU etc on the Dashboard. Their dashboard is completey customizable and you can add any metric basis your need.