If you had read anything you'd know the primary goal of the new, more frequent, release schedule is to move to smaller and therefore less buggy releases.
I'm not saying there is anything there, but I never trust the search on GitHub under any circumstances. It routinely doesn't find things I am positive exist on my own code bases.
Idk which is older but didn't they both blatantly copy the Ergodox layout?
I have commuted with an Ergodox and I honestly just find it a bit too large. If you are set on that many keys I'd suggest you check out SliceMK since they made a low profile Ergodox. I'm not a fan of ZSA since they are overpriced (cheap plastic) and haven't really ever done anything innovative IMO. Although I don't use it often my SliceMK wireless Ergodox is really solid.
Idk about no crease but Samsung's appear to be the most noticeable from what I've actually seen. I think other manufacturers have improved on this over time but I haven't seen anything newer than my Pixel Fold in person.
IIRC display and chip manufacturing are basically treated like separate businesses from the phones as a product. And all the other companies foldables are better than Samsung's (imo at least) because they haven't innovated or improved in several generations.
The latter.