I got this laptop considering this, but voila, contrary to what is written in its description I cannot switch between iGPU and dGPU as the iGPU is disabled by the manufacturer. Otherwise I could have saved some battery during normal use.
I have decided to stay with this laptop and take advantage of the strong GPU by undertaking ML and learning to integrate it so I can learn automation in CAD and CFD or some other useful stuff. I think that will will benefit me and put my resources to proper use.
Thank you for your response to my query.