Google is testing Seller Ratings for organic listings outside the US for the first time, expanding this feature to regions like Australia and the UK. Previously, Seller Rating rich results were only available in the US. This feature can help eCommerce stores without on-site product reviews to stand out by displaying Seller Ratings instead.
Semrush tracks Seller Rating rich results within the 'Reviews' filter, which may show an increase in visibility for sites without product reviews marked up starting from June 10th.
Currently, there is no way to track this rich result type in Google Search Console, but this might change if Seller Rating rich results become a global feature.