Thanks for MR. Although having such an option could be potentially useful, the best way to implement it would be as a driver option in the registry (i.e., under `HKCU\Software\Wine\Wayland Driver` and the per-app variant). Implementing the infrastructure to read such options would make this change large enough to fall outside the scope of the freeze. I would prefer that we implement this properly after the freeze.
Most compositors offer some way to turn off pointer acceleration globally, so at least there is a way for users to get the behavior they want in the meantime.