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issue.property[assertthat-scenarios].tags
(available since version 1.8, follow the steps in https://assertthat.atlassian.net/wiki/spaces/ABTM/pages/2192211987/Using+AssertThat+scenario+properties+in+JQL+search#Reindexing section below after upgrade to version 1.8)
For example, looking for Jira issues with at least one failed scenarios
project = DEMO AND issue.property[assertthat-scenarios].failed>0
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Or for Jira issues which that have scenarios linked with a 'regression' tag
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All new scenarios/linkage created after 26/09/2021 will be automatically indexed and available for querying in JQL. In order to add existing scenarios to index the manual action is required
Navigate to the project configuration page
Click the 'Reindex now' button