Explanation
These are three considerations when adding a report chart to a Console Component. The report must contain a chart that displays data in a graphical format. The report must be a Summary or Matrix report that groups data by rows and columns. The report chart must be added to the Page Layout of the object that the report is based on. Verified References: :
https://help.salesforce.com/s/articleView?id=sf.console2_components_report_chart.htm&type=5 :
https://help.salesforce.com/s/articleView?id=sf.reports_charts_overview.htm&type=5 :
https://help.salesforce.com/s/articleView?id=sf.reports_format_types.htm&type=5 :
https://help.salesforce.com/s/articleView?id=sf.reports_charts_adding_layouts.htm&type=5