Explanation:

Box 1: Report
Reports are more detailed data displayed in many formats like chart, graphs list and in tabular, etc.
Box 2: Dashboard
Dashboards are a business key performance indicator view where it displays key values that can change business profits and can be glanced at one screen.
Box 3: Report
Power BI dashboards cannot slice and dice, but reports have many ways to filter and slice.
Note: Power BI dashboards are one placeholder to display the most important decision-making facts to run a business. But reports are more detailed data displayed in many formats like chart, graphs list and in tabular, etc. Reports are based on one dataset or one business unit data for example reports of a store belonging to California.
Reference:
https://www.educba.com/power-bi-dashboard-vs-report/