This doesn’t quite answer your question but I really like my Framework 13”. But that is not the kind of device you are looking for.
But I am just throwing out there - there is new products being announced by Framework 2-25 and there is speculation of possibly a yoga type laptop. Maybe it would fit what you are looking for!
I had one of the initial batches and the hinge was too weak. They came out with stronger ones that are much better which I now have. It was cheap and easy to replace