It’s a “plug in” built into the paid version of ChatGPT, run by default and created by OpenAI.
This isn’t a third party obscure plug in.
All “tools” use a plug in architecture
You're a troll, and I'm done feeding you.
What part is “trolling”? Paid users have been able to use ChatGPT using the built in web browsing plug in for over a year just by saying “please provide citations” or “verify that”.
What you say has been around for a few weeks has literally been around for paid users for over a year