The standard text editor on Vocal is optimized for long-form prose and adjusts formatting for readability across different screen sizes. That can cause poetry line breaks and spacing to shift when published.
The fix is simple: use the Poetry block.
When you're adding content in the editor, click the + icon and select Poetry. This block preserves your exact spacing and line breaks exactly as you typed them - no reformatting, no collapsing of stanzas.
If you're working on a poem, write it in the Poetry block and it will look exactly the way you intended once it's published.