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Microsoft insiders worry the company has become just 'IT for OpenAI'
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
No. They are still capable of pressure typical for oligopoly (censoring out mentions of their competition, tactically buying out things which could help that competition and shutting them down, defamation, lobbying for laws directed against their competition).
Unless that happens too fast for them to realize.