Terraform Plugin Framework Default Value

I did not find a way to define a default attribute value within the new tf plugin framework. I achieved the expected behavior with my own implementation of a AttributePlanModifier, but the implementation is very generic and I would have expected the framework to provide it similar to the other included modifiers.

Is there another way to do this that I missed, or does everyone who wants default values have to implement this modifier themselves?

Okay I can answer this myself I guess. I found a related Issue on github and it might be supported in the future, but is not supplied by the framework right now.