Phoca Cart Image Photoswipe Plugin version 5.1.2 has been released. Phoca Cart Image Photoswipe Plugin is now compatible with Joomla 6, no need to enable Backward Compatibility plugin.
https://www.phoca.cz/news/1378-phoca-cart-image-photoswipe-plugin-version-5-1-2-released-joomla-5-joomla-6

Demo: https://www.phoca.cz/phocacart5demo/