Android system icon not appearing when I drag down the status bar

Android system icon not appearing when I drag down the status bar on my Pixel 2 (Non-XL).

Does the fact that I downloaded Pie recently have something to do with that?

Welcome to Android Central! With Pie, you have to swipe down twice to get to the full Quick Settings panel to get the settings gear. Not sure why they did that. I use the Notification Toggle app to add a toggle bar in the swipe down notification panel that includes a Settings shortcut.

I think that started in Oreo, didn't it?

I think the gear icon was still visible on the first swipedown on Oreo, but I'd have to check my device that still has Oreo (Pixel C).