Literally zero flex on the keyboard. I just pulled it out and pressed hard on it. No flex of the keys pushing down through the metal (like a gasket mounted mechanical keyboard would do), and zero flex of the aluminum.

I'm curious about this as well. The keyboard flex was always brought up by early reviewers for the Framework 16, and I think Framework said they would make a more sturdy keyboard for it later, but I haven't heard any updates about that.

Got two frameworks, a generation apart. No flexing issues