I can't seem to get tasks running concurrently or in parallel with dask in prefect 2 without using task.submit() Is that expected behaviour? It doesn't seem to be reflected in the docs.

Hi Steph, yes that is expected behavior. We are working to ensure that our docs are updated by GA later this week. For now we are posting updates to this slack and discourse so I would keep an eye there.

Here's also a relevant discussion https://prefect-community.slack.com/archives/CL09KU1K7/p1658562987817589