The first row of tiles shows the Latest Score view from each of the categories. Clicking on one of these tiles opens the related page in Experience.
The tiles either display information on the entire estate, if no filtering has been selected, or just the devices that are covered by the filtering query. For example, if the selected filter is High Criticality - the tiles will only contain devices that were configured as High for Criticality.
The tile on the bottom row shows the trend for all the categories over time.
For more information about filters, please refer to Filters.