New Format may be Lacking old features
I don't see an option for changing sort order, i.e., by Sender, Date, size, etc.
N.B. You have removed in the new layout a way of editing one's folders. A big loss!
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We actually have all of these sorting options. If you have Conversation view enabled, you will see Date and Size, but we don't call it this... We say newest first or oldest first. And instead of Size, we say "Largest First." If you have Conversation disabled, then another sorting option will be added Sort by Sender. You can find all these sorting options in the right hand side, while looking at your Inbox.