> Neither Apple nor Qualcomm have any incentives to share their designs with ARM anymore than they do with Intel, AMD or each other.

Techniques leak out as people move around, etc.

For example, AMD had a lead on chiplet designs but now Intel has them in the latest generation. I would expect that ARM will have chiplets designs by the end of the decade as well.

Look at Anthropic that seems to have an LLM that is on par with OpenAI GPT 4.