Is there a way to transparently "adopt" default-created resources into Pulumi? The resource-level "import" parameter is close, but it requires the resource to match. For example, GCP creates a default VPC for new projects, so I'd like to "adopt" that VPC into my pulumi project automatically when a new stack is deployed.

but it requires the resource to match

This is so you don't get diffs. Do you intended to manage the VPC or do you just want to have read access to it's properties?

I want to manage the resource

yeh that's probably the best answer for now. We probably do need to think about allowing the import option to just do an import and update in a single step for cases like this, but iirc there's some subtlety to that in the engine that makes it tricky