Can i filter by label using datasource?

Hello! How can i filter by label using datasource? I am using prometheus datasource, i try using the custom query parameter with label, like type=“dev” but it doesn’t make anything, the metrics still show me type=“something” not just dev.
So i am trying to make all metrics that using this datasource, use this filter, not just filter by one dashboard or one metric, but with all of them.

Have you found a solution?