Compostable Bioplastic Market by Polymer Type (Algae-Based Polymers, Cellulose-Based, PHA), End Use Industry (Agriculture, Automotive And Electronics, Consumer Goods), Form Factor, Compostability Standard, Feedstock Source, Processing Technology, Degradation Environment, Additives And Blends, Certification And Compliance, Market Participant, Performance Characteristics, Price Tier, Distribution Channel - Global Forecast 2026-2032