AMD did hire someone to do this and IIRC he did, but they were afraid of Nvidia lawyers and he released it outside of the company?
Andrzej Janik.
Starter at Intel working on it, they passed because there was no business there.
AMD picked it up and funded it from 2022. They stopped in 2024, but his contract allowed the release of the software in such an event.
Now it's ZLUDA.
So the strategy to publish independently, wait and see if nvidia lawyers have anything to say about it, would be a very smart move.