To set up a Facebook Shop and Google Shopping Feed in Magento 2, you'll need to follow these steps:
Install and set up the Facebook Pixel and Facebook Catalog in your Magento 2 store. You can find more information on how to do this in the Magento 2 documentation.
Set up your Facebook Shop. To do this, you'll need to create a Facebook Business account and connect it to your Magento 2 store. You can then create a Facebook Shop and add products to it by linking your Facebook Catalog to your Facebook Shop.
Set up your Google Shopping Feed. To do this, you'll need to create a Google Merchant Center account and connect it to your Magento 2 store. You can then create a Google Shopping Feed and add products to it by linking your Google Merchant Center account to your Magento 2 store.
Optimize your product data for both Facebook and Google. This includes adding high-quality product images, accurate product titles and descriptions, and relevant product tags and categories.
Set up automatic product updates for your Facebook Shop and Google Shopping Feed. This will ensure that your products are always up-to-date on both platforms.
It's worth noting that setting up a Facebook Shop and Google Shopping Feed can be a complex process, and it may be helpful to seek the assistance of a Magento 2 developer if you're not comfortable with the steps involved.