I feel like it's a pretty weird omission taht basis_universal isn't mentioned at all? Can also target Khronos's ktx2 too. https://github.com/BinomialLLC/basis_universal

Because the article is about hardware formats, not storage formats. GPU hardware formats are left compressed in GPU memory, the GPU decodes it on the fly. Basis universal must be decoded to a GPU hardware format (or to plain RGBA) before it can be used by the GPU.