A lot of articles mention the likes of Intel, Microsoft, Infosys, Samsung, J.P. Morgan etc — are building software using Ethereum or some other blockchain platf

A lot of articles mention the likes of Intel, Microsoft, Infosys, Samsung, J.P. Morgan etc — are building software using Ethereum or some other blockchain platform. But I wonder if they actually are just forking the code off of Github and creating their own blockchain or ethereum-based Microsoft token, or Intel token for their own internal use and this is being misrepresented by cryptocurrency-owning journalists. It seems to be too risky for big companies to build DApps for the authentic Ethereum when they can't predict that the price of gas won't quadruple again. Creating their own blockchain could mean cheaper or free gas with all of the upsides to using ethereum and an added customization ability. If this is true, then the price increases in ethereum have been unfounded.