Continue chat from shared link from other user?

I remember that I could continue a chat that was going on between my friend and ChatGPT, on my ChatGPT account. But it seems it is no longer possible now. Is this true?

Yes, they disabled the “continue chat” feature, which was quite useful.

Now at the bottom of the chat share there is just a ChatGPT link, formerly an ad to upgrade to Plus.

That is really disappointing. It was a nice function. Now we can only copy the entire conversation and paste it to continue the chat.

Could it be that this caused the bug where many people suddenly got chats from others?