Issuetype wise monthly worklog report

This is not a bug, please consider this as question/request. I was trying to fetch worklog monthly report against "story & associated subtask" and "bug & associated subtask" from all development project I have on my Jira Cloud instance. Using worklogdate>=startOfMonth() fetch the issue where we have logged hours but export carries old timelogged also on those Jira issue. As log work date filed not appear in export not able to separate hour spent in current month.

Any suggestion.

I can fetch this on Jira server from database but on Cloud looking for solution.