Unfortunately, there is no standard filter function for filtering data with "order notes" on the Shopify order management screen. Therefore, it is convenient to use Flow to tag orders with order notes. By the way, Flow can also be applied to existing orders, so there is no problem if you set it later.
Example) A tag is added to an order that contains an order note.
[Step 1] Determine whether or not there is an order memo when creating an order
[Step 2] Add tags to order notes if there are any
[Step 3] Flow can also be applied to past order data
