There was a lot of hype around Procreate Dreams when it was announced in the fall. Aaron Blaise did an animated short for the launch, and has been doing some videos since.
Here's his informal tutorial of how to use Procreate Dreams, done live at an event with thoughtful questions from his audience.
https://youtu.be/wnjet_kvkUo?si=e40WXWfoAtXXPQ77
He's also offering a deal on a more formal class through his website. Only $1, so I just purchased it.
https://creatureartteacher.com/product/aaron-blaise-get-started-with-pro...
If you want just the nuts and bolts of how the program works, here's an Envato tutorial I watched last week before using the program for the first time.