is this compatible with elementor?

Breadcrumb NavXT includes a widget and a Gutenberg block for when you don’t want to call the bcn_display() function via PHP in your theme. There isn’t a shortcode included with the core Breadcrumb NavXT plugin (there is an extension that adds one). As for specific Elementor support, as a general philosophy, Breadcrumb NavXT does not add support for 3rd party plugins/themes/code within the core plugin. I do not have experience with Elementor, I’m not sure how it actually works and what it does for integrating other plugin elements. If it supports widgets or blocks, then I would think you could use the Breadcrumb NavXT widget or Gutenberg block.