Upload files to AWS

What is the preferred client for uploading files to AWS?  I’m assuming that Cloudberry Labs backup will work if I want to do a backup.  I’ve found TNTDrive and Cloudberry drive for just mounting a bucket as a drive letter and permitting me to do a robocopy of files.

What other options do y’all use?

You might want to contact Amazon for more information, or maybe some of the other users can chime in.