Yeah, I am talking about the preview pane. What I am expecting is a margin (I guess this is how its implemented) between paragraphs.
When I test on https://spec.commonmark.org/dingus/ I do see a margin between paragraphs. Am I doing something wrong?
A quote:
> Quisque tincidunt sit amet magna vel rhoncus. Vivamus ut tortor imperdiet, ornare velit vitae, mattis arcu. Suspendisse potenti. Suspendisse molestie mi quis augue ultrices, id mattis est laoreet.
>
> Integer ac sodales diam, eget interdum lacus. Cras non elementum odio. Sed eu arcu non velit mollis vehicula et sit amet orci.
In Obsidian

In https://spec.commonmark.org/dingus/

Actually, you just made me realize that I can customize it however I with with the custom css plugin! 
This seems to be working well for me:
blockquote, p:not(:last-child) {
padding-bottom: 0.7em;
}