For ChatGPT to be the Google killer they need to provide source URLs.
It seems that the developers have placed guardrails around web-search-like queries not because ChatGPT can’t answer them, but because they want to discourage using it that way for—I’d guess because they want to direct usage towards the conversational / contextual aspects they’re trying to improve.
There's also WebGPT[0] already with such capabilities, which could've been merged to ChatGPT.