I did…

Neff N90

Left and right 20x23 cm, center 30x23cm they can work together

I do this all the time

And yes, there is a dead zone but its just a few centimeters and conductivity for heat in metal is pretty high

Or Siemens iq700 No knob however

You can add zones together… and that is possible over the complete width.

And burners are also only heating certain points…

Neff Flexzone…

Would love to eat more beans but the result for me is always quite…farty