I think the bar was just raised for browsers, it is like the iPhone moment. From now on every browser will have to follow suit or be left behind, can't search like it's 2019. Google could see its position taken over in 2-5 years, if we go by the speed Google itself, the iPhone, Chrome and YouTube won the market.
ChatGPT is not special.
Any of these companies can develop LLMs that are on par with ChatGPT.