My water does not reflect any light other than my sun (directional light). I have a cave setting where I need water to reflect a flashlight, which it does not do at all. Even just a little bit from far away at a shallow angle would be enough for the sake of immersion.
If I place a point light above the water, you can see a faint reflection of it in all three movable modes. However, the flashlight on my player is still not reflecting at least in terms of light reflecting at a shallow angle. Just goes straight through the water. Here’s what the point light did: