Side question: For user without accounts, did ChatGPT start gating repeat visitors to its chat site behind some kind of supercookie or server-detected unique id

Side question: For user without accounts, did ChatGPT start gating repeat visitors to its chat site behind some kind of supercookie or server-detected unique identifier? Used to be able to throw a quick query at their site, now it just pushes me to a signup page (even after clearing cookies, incognito, etc). So much for this announcement? https://openai.com/index/start-using-chatgpt-instantly/ https://openai.com/index/start-using-chatgpt-instantly/