And I'm skeptical ads will remain outside of the ChatGPT output for very long. You can hide a div tag, but you can't hide an advertisement streamlined into the "conversation" with ChatGPT. Is ChatGPT recommending product X because they're an advertiser, or because that's what it "learned" on the internet? Did it learn from another advertisement?
I fully expect them to exploit the plausible deniability.
I look grimly forward to the future of adblock, which I predict will literally involve a media interception and re-rendering agent that sits between us and everything we see, hear, read, etc. AR goggles that put beach pictures over bus stop posters and red squigglies under sentences with a high enough adtech confidence score. This shit's gonna get real weird in our lifetimes.