Yes, Magento 2 Google Shopping can handle large catalog feeds by processing many product entries in the feed file. It supports bulk export of product data so stores can send thousands of listings to Google Merchant Centre without splitting them manually. When you upload a large catalog, the system breaks the feed into chunks that Google can read. This helps avoid upload errors and keeps the product data organized. Magento 2 Google Shopping also updates these feeds regularly so products stay fresh in Google Shopping listings.

https://store.webkul.com/magento2-google-shopping-feed.html