Foldables are sort of boring now — and that’s great news for Apple

This is The Stepback, a weekly newsletter breaking down one essential story from the tech world. For more on smartphones and Android, follow Dominic Preston. The Stepback arrives in our subscribers' inboxes on Sunday at 8AM ET. Opt in for The Stepback here. How it started Believe it or not, it didn't all start with Samsung. Royole, a now-bankrupt manufacturer of flexible displays, was the first to release a commercial folding phone, the "charmingly awful" FlexPai. Samsung's first Galaxy Fold…