One does not disqualify the other. Over time, I managed to get my weekly calls from 10+ to 4. That’s great.
At the same time, if I’d lose my second screen, I’d lose more productivity than I gained from all the won time. I think most dev related jobs benefit greatly from a 2nd monitor. I couldn’t imagine working on a website, having an IDE open, browser dev tools etc. and constantly alt-tabbing between all of those.