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Pre-requisite: The Asset objects type custom fields are configured and available in Jira issues. For reference, the Location and Model custom fields are defined and configured.
Create a List report.
Go to Jira > Reports and Timesheets > Custom Report.
By default, the report type is selected as List.
Click on the following fields in the left-hand side fields selector Search fields panel to add them to the report.
Common: Issue Key, Issue Type
Custom Fields: Model, Location
Location - Click Settings ( )
Select the option, Group the results by this Asset custom field.
To report only issues that contain non-empty Location field values, add the filter.
Click Run to view the result.
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To view the Asset object details, click the Asset custom field value. This takes you to the Asset object screen.
To view the report in other report-type formats, you can create a similar report.