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.

[1] https://www.lenovo.com/us/vipmembers/ticketsatwork/en/p/lapt... [2] https://www.notebookcheck.net/Lenovo-ThinkBook-13x-G4-laptop...