the blackberry-licensed android phones (priv, key, key2... i think since 2016) had a os level hack that made EVERY app windowed. you could split the window and

the blackberry-licensed android phones (priv, key, key2... i think since 2016) had a os level hack that made EVERY app windowed. you could split the window and use two apps. for everything! only annoyance is that some apps reload when you did that, which was annoying the first time only. i still think HN crowd slept on those phones. a lot.