“Just Google it” was always worthless advice, even when Google worked right. When you look up information on the Internet, you need prior knowledge in order to assess the information. Maybe this is great info? Maybe it’s dumb and whoever wrote it is a moron? Without prior knowledge you don’t know. With prior knowledge you can see what they say about the things you already know and decide from that.
I once tried to configure a Cisco access point, with zero prior experience with Cisco IOS. Simple stuff, but I knew nothing and had to Google it. I found some blog explaining it, but it looked weird. But I also knew IOS is weird, so maybe it’s right? Hard to say! I reached out to an old friend who is Cisco certified to verify, he told me to ignore that thing and showed me what I should actually do. It really made me realize how useless googling something is if you don’t have the prior knowledge to assess it.
It wants to show you a graph of your air quality.