if the “capsule” is going outside the room it means the light can reach there, but if there’s a wall or something “in the way” it will cast shadows and there won’t be light there (even if the capsule goes there), you can can adjust the intensity (increase the intensity will make it shine brighter) and adjust the “attenuation radius” (increasing it will make the light going further, but as i said if there’s something in the way it will “stop” the light), the light can still go through your window (at least if your window looks like the one in my ss) if you should change it/make it smaller is up to you, you have to adjust it till it looks like what you want, a skylight can affect the point light (the lights will be kinda “summed”) but in this case your walls won’t let this happen.