I'm using OceanWP theme and Elementor at this site: https://mymythos.org/
Ritual, Relaxation, and Motivation are examples of the second post type. Most of the other posts are normal WP posts.
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post_class() function can be used in the loop to automatically output some classes that you can target via CSS. Post types will have the class
How that might integrate with Elementor is unfortunately something you will need to ask via Elementor's support channels, as 3rd-party plugins and themes are off-topic here.