Traditional consoles had fixed hardware which could be exploited through vendor specific APIs. If this is just going to run games programmed with OpenGL, this is not different from any other Linux PC.
Given the introduction of APIs like Vulkan which bings the programmability of PCs even closer to consoles, I don't see a use case.
The only market I can think of the niche of Atari fans.
Traditional consoles had fixed hardware which could be exploited through vendor specific APIs. If this is just going to run games programmed with OpenGL, this is not different from any other Linux PC.
Given the introduction of APIs like Vulkan which bings the programmability of PCs even closer to consoles, I don't see a use case.
The only market I can think of the niche of Atari fans.