Grzesik–Győri–Salia–Tompkins bipartite Turán-goodness conjecture

A graph $H$ is $K_3$-Turán-good when, for all sufficiently large $n$, the Turán graph with two parts attains ${\mathrm{ex}}(n,H,K_3)$. The Grzesik–Győri–Salia–Tompkins conjecture. Every bipartite graph $H$ with diameter at most $4$ is $K_3$-Turán-good. This is presented in the survey as a concrete open problem on Turán-goodness.