I switched to the fairly new Edge browser since it is chromium based and has better resource management and a better integration with Windows 10. Yet I am unable to get rid of the annoying pop up that got carried from Chrome. But at least, it was possible to get rid of the warning in Chrome by tweaking its extension policies; The trick doesn't work with Edge.
If someone managed to get rid of the pop up, please share how.
I found a patcher that works - https://github.com/Ceiridge/Chrome-Developer-Mode-Extension-Warning-Patcher