Hello, Benas,
Thank you for contacting us and for using XStore.
The WooCommerce breadcrumbs structure is designed to automatically select a category to display from the list of categories assigned to your product. Should you wish to specify which category is shown, you have the option to set a ‘Primary category’. This can be done by navigating to the ‘Product’ section, selecting ‘Edit Product’, and then accessing the ‘8theme Product Options’. A visual guide for this process can be found here: https://prnt.sc/OTLTFSB49Duz
Best Regards,
8Theme’s Team