How to capture the stdout stream of an electron application in windows?
If you run .\App.exe > log.txt and you can see the output string in the console it means that the string is not being written to STDOUT (the Success output stream in PowerShell terms) in the first place.
Apparently the Electron developers decided to attach stdout directly to the console instead of actual STDOUT (see issue #4552). If I understand the discussion there correctly you can set the environment variable ELECTRON_NO_ATTACH_CONSOLE to avoid this behavior.