People have already given you the answer, but macOS also supports tabs in nearly all the stock apps, so CMD+{1,2,...} is an even nicer way to work with multiple

People have already given you the answer, but macOS also supports tabs in nearly all the stock apps, so CMD+{1,2,...} is an even nicer way to work with multiple terminal windows, if you're not a fan of tmux. I don't think any stock Windows applications allow tabs.