Using FLOW to set fulfillment based on Metafield in order

we have an integration with our warehouse (that has their own fulfilment software) that sets a metafield to “complete”.

When that happens, the order status should be updated to be “fulfilled”

Looking at FLOW, I can add a condition for metafields, but do not see any options for fulfillment.

is there any way to set an order fulfillment status based on metatags?