Bing's version of GPT-4 seems so inferior to OpenAI's that I'm wondering if Microsoft screwed up the fine tuning in their rush to get it out. Or maybe they are using an earlier version. But I do get a reasonable answer with your question with GPT-4.
GPT-4 does give me brand recommendations but, so far at least, only when I ask. Pretty obvious how this will play out in the long term.