> every observation is public as soon as it is processed with no embargo

That's a big deal. Do you have any source for that? (I couldn't find it in the ones you linked). This is great for humanity as a whole, but... poor grad students who now need to rush to publish their papers even sooner.

  Data from all of Roman’s surveys will be made public as soon as it is processed, with no periods of exclusive access.
https://www.nasa.gov/missions/roman-space-telescope/nasas-ro...

Thank you! From talking to a contact working with JWST, it sounds a bit trickier in practice. The data are public, but with Roman the idea is that you must process them on their computers rather than download everything locally, and you pay for the compute/storage you use.