Google Analytics and Metadata measure clicks in a different way which can result in discrepancies when trying to compare the two.
Google Analytics will measure clicks based on page views after someone clicks an Ad and is directed to the Landing Page. The URL will contain parameters that Google Analytics is tracking.
Metadata measures ALL clicks from the Social channels.
In this example, you can see that Clicks (all) is being measured as 54, but the actual Landing Page views is being reported as 2. Metadata will report based on Clicks (all) and Google Analytics would be reporting based on 2 which is when someone lands on the Landing Page.