Current Android WiFi list has a dedicated QR Code button next to it, so it should become more accessible in half a year when most people are on Android 10
This data [1] from google is a bit old (from May 2019), but shows about 10% on Android 9, and maybe a third on Android 8+; to get 50%+ (the common interpretation of most) you're looking at Android 7+, and that was released three years before the stats. Maybe, if uptake of 10 is as good as 7+, we'll see most people on Android being able to use this in 2022.
Project Trebble made a huge difference, and Android 9, which is one year old, is already at 48% market share. This is so much faster than older Android upgrades before it.
Stats from different places are going to show different trends. Google's stats are a lot closer to all of the Android market than PornHub's. It's unfortunate that Google is slow to update. But it might be interesting to look at trends in PornHub's data, if they provide it over multiple years.
