Partially true, a significant chunk of modern GPUs are really just very wide general purpose processors, but they do still have fixed-function silicon specifica

Partially true, a significant chunk of modern GPUs are really just very wide general purpose processors, but they do still have fixed-function silicon specifically for graphics and probably will for the foreseeable future. Intel tried to lean into doing as much as possible in general purpose compute with their Larrabee GPU project but even that still had fixed-function texture units... and the concept was ultimately a failure which hasn't been revisited.