MAPT and tauopathy: Recent advances in cryo-EM structures of Tau fibrils enabled structurally based classification of Tauopathies, revealing distinct folds for different tauopathies (Fitzpatrick et al., 2017; Falcon et al., 2018a; Falcon et al., 2018b; Falcon et al., 2019; Zhang et al., 2020; Shi et al., 2021).