Dynamic cross filter enables to you to change the data being shown in one chart by zooming, scrolling, dragging the data displayed on another chart.
As an example, as you drag a box over a scatter plot, the table chart next to it shoes a detailed view of the data points on the scatter plot.
Another example is that as you zoom over a deck.gl map, the table chart next to it shows a different detilaed view of the data points making up the map.
To add to this I want to select a timeseries line chart's timeline, select a range and see other timeseries charts filtered accordingly. The time filtering on dashboards is not intuitive to end users.