What's the difference between Standard and Dynamic Retargeting ?

Standard and Dynamic Retargeting are both used in online advertising to re-engage with users. Here are the key differences between Standard and dynamic retargeting:

Standard Retargeting  Dynamic Retargeting (Recommended) 
The ads shown to users are generally the same for everyone in a particular retargeting audience. The ads dynamically change based on the user's previous interactions with the website. 
While the ads aim to remind users of the brand, they may not showcase the exact products the user previously viewed. Ads can display specific products or services that the user interacted with during their previous visits
Standard retargeting is suitable for campaigns where a general reminder about the brand Dynamic retargeting is particularly effective for e-commerce businesses with a large product catalog.
Requires linking of Google Ad account Requires linking of both Google Ad and Google Merchant Center account