Comprehensive and Detailed Explanation:

To automate the submission of articles for approval in Salesforce Knowledge, especially when certain article types and categories require approval, a record-triggered flow can be utilized. This flow can be configured to automatically submit articles for approval upon creation or update, ensuring that the approval process is initiated without relying on agents to manually submit articles.

From Salesforce Help:

"Create an Approval Process and use After-save Record-Triggered Flow to automatically submit the record into the Approval Process."

—Auto Submit Record into Approval Process with Flow

By implementing this solution, UC can ensure that articles requiring approval are consistently submitted through the appropriate approval processes, aligning with KCS practices and reducing the risk of agents forgetting to initiate approvals.