No, 1TB/month Data Transfer Free Tier only applies to CloudFront service and any traffic leaving CloudFront. AWS Amplify has different pricing, different billing dimensions, and it has its own Free Tier limits: https://aws.amazon.com/amplify/pricing/ (check pricing examples at the bottom of the page)
Amplify doesn't have the same data transfer usage and charges like EC2 or CloudFront. There is "traffic served per month" pricing dimension instead, which has its own Free Tier limits.
I hope this helps.
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