Does Benecaster work with page builders?

Yes. Benecaster works with any page builder.

The Blocks & Widgets Library add-on (free) provides Gutenberg blocks and Elementor widgets for all Benecaster front-end elements — episode player, subscribe CTA, RSS URL display, QR code, episode list, and more. Shortcode fallbacks are available for every element and work with any page builder or classic editor setup. See the Shortcodes Reference for the full list.