  We consider the quiver Yangians associated to general affine Dynkin diagrams.
Although the quivers are generically not toric, the algebras have some similar
structures. The odd reflections of the affine Dynkin diagrams should correspond
to Seiberg duality of the quivers, and we investigate the relations of the dual
quiver Yangians. We also mention the construction of the twisted quiver
Yangians. It is conjectured that the truncations of the (twisted) quiver
Yangians can give rise to certain $\mathcal{W}$-algebras. Incidentally, we give
the screening currents of the $\mathcal{W}$-algebras in terms of the free field
realization in the case of generalized conifolds. Moreover, we discuss the
toroidal and elliptic algebras for any general quivers.
