I am afraid that its not possible. You might have to contact third party vendors and more over Flow is a corporate licensed tool (Microsoft) for syncing items from JIRA to sharepoint.
There used to be a plugin Sharepoint Connector for JIRA which has been archived.
I have multiple projects that use variations of the same base workflow. The variations depend on the requirements of the project or issue type. The variations mostly come in the form of new statuses ...
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