Turn on Alpha to Coverage (AlphaToMask) for masked materials on mobile.

All masked materials in Forefront seem to alias way more than the rest of the scene, the mipmaps are likely being averaged down so masked objects have better visibility over a larger distance, a good visual upgrade. But this further increases aliasing.

Alpha to Mask effectively repurposes MSAA subsamples to fake a smooth alpha edge for free, something that is worth researching and looking in to, it might be worth to use this setting as it would be a good upgrade visually.