google might have a chance to win the LLM battle, to train multi-modal LLM based on youtube videos, which is a huge advantage over Microsoft. OpenAI's Codex model got the reasoning ability through github. LLM could learn so much more with real-life videos in an embodied way.
Maybe YouTube videos can be used to train models on how to verbally present information in a compelling way, but I don't see how it would make an AI better at generating written text.