Andruskiewitsch–Schneider generation conjecture for finite Nichols algebras

Let $K=\Bbbk G$ for a finite group $G$, and let

$$R=\bigoplus_{n\ge 0}R^n\in{}^{K}_{K}\mathcal{YD}$$

be a finite-dimensional coradically graded connected Hopf algebra, with $R^1$ its degree-one component. Andruskiewitsch–Schneider conjecture. $R$ is generated as an algebra by $R^1$; equivalently,

$$R=\mathcal{B}(R^1).$$

This is the generation-in-degree-one step of the Andruskiewitsch–Schneider lifting method for classifying finite-dimensional pointed Hopf algebras. The source gives no resolution status for the conjecture.