As was clear in context: Google evaluates the real thing for inboxing. It is relevant to which tab your emails get placed under. Hence all the advice to remov

As was clear in context: Google evaluates the real thing for inboxing. It is relevant to which tab your emails get placed under. Hence all the advice to remove people who don't engage. Whatever open rate stats are shown to marketers are irrelevant to google's deliverability choices.