I had the exact same experience, on Windows had to purge everything and lost all my history, on Mac it was a one click upgrade and sign in again for the most part with history gone as well.

Overall the experience was pretty bad for what is expected from them and I'm wondering what the thought process behind this is, I dislike this single prompt box review workflow and is a reason I don't use any of the tui stuff and it's odd that they are leaning so hard to mimic CC when others like cursor are embracing the same workflow but still sculpting around the code. I want to edit as I'm working and have access to all my normal tools and fragmenting my work to this new vision and a separate text editor defeats the point.

For now I'll probably switch to using it as a fallback when I've exhausted my quota elsewhere and start to rely on it less before the next rug pull when I wake up and the IDE is gone. Aside, Gemini has been surprisingly good and I really liked their take on the implementation and review workflow.