Does S3 FTP support AWS?

Yes, S3 support FTP.

There are three options to connect to an Amazon S3 bucket with FTP or SFTP:

You can use a native managed SFTP (Secure File Transfer Protocol) service recently added by Amazon (which is easier to set up).

Or mount the bucket to a file system on a Linux server. Then, access the files using the SFTP like any other files on the server (which gives you greater control).

Or you can just use a Graphical User Interface client that natively supports the S3 protocol