Google is sticky too, and has a huge moat around that access (android, browsers).

Google hasn't yet pushed hard into dominating the chatGPT use case, but they could EASILY push out chatGPT if they tried. For example, if they instantly turned their search page to the gemini chat, they would instantly have dominated openAI use cases. I'm not saying they would do that, they will probably go for the 'everything app' approach slowly

I think the use cases of chatGPT and google are not differentiated enough to justify 2 winners