You are absolutely right that these things are the true solution to not have depression. However, they don't really work when you are already in it though. It's like telling a drowning man to start practicing his strokes or someone falling out of a plane to invent a parachute.
Depression is a self sustaining problem. The depression prevents you from seeking social activities, taking care of your body and mind and being creative, This obviously makes the depression worse. Paradoxically, forcing yourself to do any of these activities makes the depression worse as well due to the internal resistance to get better.
We definitely do need innovation. We need something that works, is scalable, doesn't cost $1k per month in therapy fees and doesn't have any adverse side effects.
My current best guess about the future in this space is a combination of microdosing and supportive apps like mine.