That's so funny- that makes me think:
2007 (or so) a manager asked me not to use a Windows Pen Tablet in a meeting because it wasn't respectful.
2011 Every senior manager brings an iPad to meetings and seem to get distracted.
2015 (Tech co) Everybody brings an MacBook Air or a MacBook pro to every meeting
2018 (Entertainment Co) Any electronic device is considered disrespectful in a meeting, especially phones.