mobileatom, Evolving Drupal's Layout Builder to an Experience Builder. https://buff.ly/3QfI44w
Looks like Dries decided to save Paragraphs from Gutenberg.
Drupal has the details: https://www.drupal.org/about/core/blog/working-toward-an-experience-builder
This better explains the decision and doesn't rule out integrating Gutenberg.
Still, I am sure this will take years to come to fruition.