You can have more ultrawide retina displays going than your neck will let you crane your head at.
Only one display needs be hardware, the others are virtual.
PS. Separately, for real displays, most likely your Intel is doing DisplayLink (and most likely not retina resolution), while the Mac is not compressing the video. The Mac can also support a slew of DisplayLink monitors if you get a DisplayLink driver. Elegato and others use the standard driver to run their monitor accessories like Elegato's teleprompter, but you can also use DisplayLink on lower end Macbooks that only support 2 or 3 uncompressed 4K+ retina screens at once as well as on certain docks that split to multiple DisplayLink screens.
https://immersed.com/
You can have more ultrawide retina displays going than your neck will let you crane your head at.
Only one display needs be hardware, the others are virtual.
PS. Separately, for real displays, most likely your Intel is doing DisplayLink (and most likely not retina resolution), while the Mac is not compressing the video. The Mac can also support a slew of DisplayLink monitors if you get a DisplayLink driver. Elegato and others use the standard driver to run their monitor accessories like Elegato's teleprompter, but you can also use DisplayLink on lower end Macbooks that only support 2 or 3 uncompressed 4K+ retina screens at once as well as on certain docks that split to multiple DisplayLink screens.