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Can the 'Total Time in Status' field be JQL searchable?
Unfortunately, this feature is not available This feature cannot be implemented due to the nature of how the field and the way Jira search works.
Currently, Lucene-based Jira search works through indexes which are updated when the Issue is edited. This facilitates and speeds - up the search.
Issue History Collector The plugin SLA field is a Calculable Custom Field calculable custom field that changes its value every millisecond. We get the value of this field only at the moment when it is addressed ( or displayed / modified). If the Issue has not been accessed (or edited ) for a while - , the index value in Lucene will 'remember' only its last state ( which may can be a years ago). So, query results can not be considered as correct, which cannot be considered a reliable result in the search.