Bio-Methane Market Size & Forecasts 2026-2035, By Segments (Production Process, Feedstock Type, Application, End-User, Purification Technology), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (Archaea Energy, EnviTec Biogas, Xebec Adsorption, Bright Biomethane, Future Biogas)