Using ZoomInfo + LI Sales Navigator. Is this a glitch?

Hey everybody, an SDR on my team pointed out something a bit unusual and I'm wondering if I'm missing something wildly obvious, or if this is some type of glitch.

For context: When I search for prospects using LinkedIn Sales Navigator and I want to export a prospect's data, I click into their profile on LinkedIn Sales Navigator and use the ZoomInfo Chrome extension to export it into Outreach.

But here's the thing, I've noticed that if I open that same prospect's profile on regular LinkedIn (as opposed to Sales Navigator), there appears to be more data available from Zoominfo.

For example, if I find John Smith's profile on LI Sales Navigator, there is only a corporate phone number and no available email address. But if I open that same Linkedin profile on regular LinkedIn, there's a business email, phone number, and mobile number.

It also happens when I use the Lusha extension! Am I missing something obvious? Or this is just how these data providers work?