On the framework discord it is speculated that it is most likely from the Lenovo Thinkbook 13x Gen 4 [1] [2]. Would fit in terms of specs, rounded corners etc.
Why don't they offer a rounded corner bezel to match?
In general, I'm disappointed by the lack of real customization. There are a few color/aesthetic options, but would love to see things like trackpoints, three button trackpads, bezels without cameras, and other things that would actually change usage.
