A connected publishing account should not turn every draft into an immediate external action. Keep creation, review, approval, and publishing as separate states, and make the person approving the item check the final asset, caption, destination account, and scheduled time.
In Softyu Office, connect Instagram through the supported integration flow and keep new content in draft until it is ready. Record requested changes in the same task, approve the final version explicitly, and then publish or schedule it. If access is no longer needed, disconnect the integration rather than sharing credentials.