Saying anything but the Switch has an iGPU is a very literal interpretation of what an iGPU constitutes. I'd wager that fairly modest power consumption (10-30W) and (non G) DDR memory constitutes the soul of an iGPU. PS5 and XSX do not fit those definitions, as do the Xbox One (eSRAM) and PS4.

People already have their own opinions when graphics peaked, but depending on when they set that threshold, I honestly can't help but respond with look around at the level design.

And streaming has natural latency and quality issues that can't be resolved. Almost every game streaming service is incredibly niche, dead, or BYOG.