How can one keep the window size fixed when zooming font?

This is growing to be a critical feature for me. Managing a multiple-display-monitor without this becomes quite tedious. VimR and iTerm2 can do this.

From 2014, 2015:
https://superuser.com/questions/797827/keep-window-size-when-resizing-font-in-macvim