Does Audit Log track when Journal Approver approves or makes comments?

I see on the audit logs that the journal approver's opr id is shown as update.  I am being told that the approvers are not updating journal lines or making new attachments.

According to Doc ID 1340135.1, it looks like these are the functions that would be picked up on the audit logs:

General Ledger

GL_AUD_JRNL

For the following actions

Create, Edit and Post Journal

Delete Journal

Mark to Post and Unpost Journal

Unpost Journal

Update Journal

Unmark to Post and Unpost Journal

Journal Date Change

What constitutes a "Update Journal"?  What actions are considered an update?  Would journal approvals be considered an update?