Wow, Google really fumbled this.

After reading the blog post I clicked the update button and the whole app was replaced, without much warning, with this conversation UI. It was even more jarring than I expected from the post because I figured there must be some messaging about what would happen and some way to just get to my files... but nope!

Then I downloaded the Antigravity IDE (as opposed to just Antigravity) and when I went to install it, it turns out I already had it installed!

So Google actually did an arguably ok thing with the apps - they split them into an IDE and an agent coordinator, and they kept the IDE installed so you can use it right after the update - but they didn't tell you what they were doing!!

If they had just said "Antigravity is now two apps. Which would you like to open?" everything would have been fine.