Comment by jeroenhd

WiFi Direct has been in Android for at least a decade, maybe even a decade and a half: https://developer.android.com/develop/connectivity/wifi/wifi...

The code was added to Android with Android 4.0 back in 2011.

You can check for WiFi Direct networks manually in Settings > Network & internet > Internet > Network preferences > Wifi Direct. If you live in a city, you can probably find one or two printers in the neighbourhood advertising a WiFi Direct channel you can use to print over.