@3dmakernoob (https://twitter.com/3dmakernoob) has posted a survey about FDM material recycling so if you get a chance to fill it in it will only take a minute....
https://docs.google.com/forms/d/e/1FAIpQLSeahMEJXd8hewBUNIzOqJKJDjULKqPIi4pjV7FEsNJUxKbBAQ/viewform?vc=0&c=0&w=1
https://twitter.com/3dmakernoob/status/1072400744840654849