I'm not 100% sure that it's the physical media its self that's the issue, it more so that the digital versions require verification from a server to be playable.

Xbox and PlayStation can shut the server down and your digital game becomes useless.

Steam I think this might be a issue, but I don't remember hearing this happening yet.

GOG you buy the game and get all the files and executables, so if GOG goes out of business your game still run locally.