Jiang–Liu–Shahidi wavefront bound conjecture for Arthur packets

Let $\psi$ be an Arthur parameter for a reductive group $\mathbf G$ over a nonarchimedean local field ${\mathsf k}$, and let $\mathcal O^{\vee}_{\psi}$ be the nilpotent $G^{\vee}$-orbit corresponding to the restriction of $\psi$ to $\mathrm{SL}(2,\mathbb C)$. Jiang–Liu–Shahidi wavefront conjecture. For every $X\in\Pi^{\mathsf{Art}}_{\psi}(\mathbf G({\mathsf k}))$, there is a bound

$${}^{\overline{\mathsf k}}\!\operatorname{WF}(X,\mathbb C)\leq d(\mathcal O^{\vee}_{\psi}),$$

and this bound is achieved for some $X\in\Pi^{\mathsf{Art}}_{\psi}(\mathbf G({\mathsf k}))$. This conjecture extends the formulation known for classical groups to arbitrary reductive groups; its general status is left open in the source.