The main issue is detection of water, which would show up as hydrogen in the elemental analysis. Failure to detect hydrogen is probably the most significant result at present:
Probably the floors of craters never subjected to direct sunlight at the poles would be the most likely surface indication. The rover had to navigate around a crater, might have been the place to look if they had the capability.
https://www.space.com/chandrayaan-3-moon-south-pole-why-nasa...