I notice that, since EuiMarkdownEditor is using Remark to process/render markdown, it follows Remark's default behavior and does not render single newlines as actual line breaks (<br>):

I know this behavior is technically up to spec, and GitHub et al. are doing their own extra processing to make newlines into <br>s, but would you consider adding a default plugin to mimic this newline -> line break processing? There is a Remark plugin called remark-breaks which already does this, and should hopefully be simple to implement. Would this be something you'd consider, or will we need to create our own processing plugin for this?