What is the "initial screen" for displaying a journal's copyright?
IEEE support mentioned that the paper can be uploaded to arXiv even after submitting to IEEE as long as this information is added to the first page of the article:

“© 20XX IEEE.  Personal use of this material is permitted.  Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”

By "initial screen" they meant for it to appear on the first page someplace. They didn't want to require it to appear "bottom of the left column" or "under the byline" because different repositories can have different displays. They just need it to be at the beginning of the article.