Does the community license let companies fine-tune it or retrain it for their use cases? There are significant restrictions on it so it's not fully open-source

Does the community license let companies fine-tune it or retrain it for their use cases? There are significant restrictions on it so it's not fully open-source, but maybe it's only a real problem for Google and OpenAI and Microsoft. Open source has turned into a game of, what's the most commercial value I can retain, while still calling it open-source and benefiting from the trust and marketing value of the 'open source' branding.