The Lucha T8 device primarily acts preventively to establish the internal homeostasis of the organism, energy balance and thus to strengthen the immune system as a whole.
It is not used to treat any organic disease, especially those in advanced stages such as lung and liver cancers, as you mentioned.
However, it can be used to improve general symptoms in patients with the above-mentioned diagnosis, and in this sense, it can lead to a reduction in tension and greater relaxation of the body, improvement of attention and sleep, sometimes even to soothing pain or general discomfort of the body.
The mentioned experiences are individual, not great, but still positive. What is important is that it cannot harm you and lead to a worsening of the condition.