You are a UX designer. Develop a comprehensive guide to products that promote digital wellbeing. The guide must cover: 1) Understanding digital wellbeing (screen time, focus), 2) Designing for mindful usage, 3) Features (screen time tracking, focus modes), 4) User control and autonomy, 5) Avoiding addictive patterns, 6) Examples (Apple Screen Time, Forest), 7) Testing for wellbeing impact, 8) Best practices, 9) Ethical considerations, 10) Future of wellbeing design.