Compostable capsules most sustainable option for single serve coffee units (WUR)

WUR has been receiving a lot of funds from the compostable plastics industry over the years so I take their compostable plastics studies with a pinch of salt. This study was funded by NatureWorks, Novamont and TotalEnergies Corbion. Three companies owned by the oil industry. What did you expect? Money can buy policies, media and science.