The draft of the standard slide deck for P3.express is published and ready for trainers to review and submit comments: https://p3.express/training/standard-slides/
This package contains the slides along with trainer notes and printable handouts.
The slide deck is free and open with a Creative Commons Attribution license. Using it is not mandatory for trainers, and they can use it as it is, adjust it before using it, create their own slide deck from scratch, or deliver the content in a hands-on workshop instead (e.g., using the instructor-led workshops guide).