Let me restate: Apple does not consider GPT a consumer-facing product. It's meant to entice game developers do "see the power of metal". Proton being well embed

Let me restate: Apple does not consider GPT a consumer-facing product. It's meant to entice game developers do "see the power of metal". Proton being well embedded and all sure helps, but it's not the basic prerequisite, which Apple is withholding from being integrated by anyone but themselves, and it doesn't look like they have much interest in it beyond being a cool demo.