Hello Sudipta ji,
I have similar problem. Trying to look into the LCD after shooting with viewfinder is pain and wastes valuable time in the field. Nowadays I just look at the histogram without specs and see if the image is overexposed or underexposed. I don’t know if this is right but saves some valuable time. I have also started using eyeglasses strap to prevent it from falling in case I have to juggle between viewfinder and LCD. But then if there is any other way(jugad) of doing it, I will certainly appreciate. Keenly waiting for solutions if offered on this platform.