How to get Product Data pull to skip items that already have something in the metafield

[HOCuser]

Does anyone know how I would get a Get Product Data pull to skip items that already have something in the metafield? 

This flow I made currently works but it just pulls the same 100 each time it runs. I tried to make a query to look for the metafield value but it did not work.

[Kalen_Jordan]

Can you explain the overall use case you have here?