Computations of the Brauer groups of some algebraic stacks

I will discuss the computations of the cohomological Brauer groups of the moduli stack of elliptic curves in characteristic 2 (following work of Antieau, Meier in characteristic not 2) and of \$\mathbb{G}_m\$-gerbes (following work of Gabber on cohomological Brauer groups of Brauer-Severi schemes).