While they can go in the organic waste bins, they still get sorted out at the end because they don't degrade fast enough.
Study from Australia: https://www.sciencedirect.com/science/article/pii/S0956053X2... Article from California: https://www.siliconvalley.com/2024/11/21/when-compostables-a... German Trash Company: https://www.zakb.de/keine-fremdstoffe-im-bioabfall
Sure and it might be that the teabags are also being sorted out.