The campaign optimization score that Google Ads appears for Search and Shopping ads is currently available for Display ads. Scores will be available at the campaign level, and a combined account level score currently incorporates Search, Shopping and Display. You may likewise see suggestions to Display Campaigns.

Recommended>> Google Says Ads.txt File Is Needed For AdSense

Image Source: searchengineland

About Google Ads Optimization Score:

It is an Estimate of how well your Google Ads account is set to Perform. It ranges from 0% to 100%, and 100% means your account can perform at its best. You can also see the list of recommendations along with the score which helps you in optimizing each campaign.