Unsure what to do with SSL certificate from database page inside settings?

Supabase mentions:
Use this certificate when connecting to your database to prevent snooping and man-in-the-middle attacks.

My project infra is Supabase backend with React SPA front-end hosted on AWS S3 > CloudFront > WAF

Where does the certificate go? I'm not too familiar with this process and haven't found much info elsewhere.
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