CDN과 S3를 비활성화하고 이미지를 로컬 스토리지로 전환 - 이것이 최선의 방법일까요?

I think you want to Enable hidden setting to include S3 uploads in the backups and the restore to a new site that doesn’t have S3 configured.

That’s what cdck does when someone leaves their hosting and it works just fine.