@BKeyport this answer inspired me to test it, so I have a solution:

1. create two different folders.
2. configure each install as you like.
3. edit each electron file in each folder “js/electron.js”
4. change the default resolution and position based on your screens.
   here is my config:

let electronOptionsDefaults = {
                width: 1280,
                height: 1024,
                x: 1366,
                y: 0,
                             }

NOTE: there are many better methods (electron-multi-monitor for example) but this is the easiest that I could find