LG has allegedly patented a next-generation phone design in which the device in question has 3 separate segments that fold into a more conventional brick-like form factor. This is not completely unheard of; however, this patent also apparently covers a complete lack of ports for charging or other uses.
https://www.notebookcheck.net/LG-may-have-patented-a-double-folding-phone-that-is-also-portless.429474.0.html
LG doesn't have enough sheep followers to be doing this. IMO it doesn't even have the market standing to be selling such an experimental and no doubt premium device. I don't think FlexPai's folding device ever sold to anyone but a few developers.