Strong quantitative quantum ergodicity conjecture for Maass-Hecke cusp forms

Let $\phi$ be a Maass-Hecke cusp form with spectral parameter $t_\phi$, Fourier coefficients $\rho_\phi(n)$, and let $\delta_{0,m}$ denote the Kronecker delta. For $\psi\in C_0^\infty(0,\infty)$, write $||\psi||_{W^{k,\infty}(0,\infty)}$ for its Sobolev norm. Strong QQUE conjecture. There exist $\nu>0$ and $k<\infty$ such that, for any $\psi\in C_0^\infty(0,\infty)$,

$$\left|\frac{1}{t_\phi}\sum_n \rho_\phi(n+m)\rho_\phi(n) \psi\left(\frac{\pi|n|}{t_\phi}\right) - \frac{8}{\pi} \delta_{0,m}\int_0^\infty \psi(y)dy\right| \ll_m t_\phi^{-\nu}||\psi||_{W^{k,\infty}(0,\infty)}.$$

This is the strong rate-of-convergence form of arithmetic quantum unique ergodicity for the Fourier coefficients of Maass-Hecke cusp forms. The source presents it as the strong form of quantitative QUE, while the supplied text gives no resolution evidence, so its status remains open.