I want to use the WLP package of MAX77827, but there are two digital pins in the middle of the package, Can i just leave them floating?

The two pins in middle of the package are POK and FPWM:

POK is open drain, yes, you can keep it float if not used.

FPWM has a ~800kohm pull down resistor, float will set the part in auto skip mode.

Tags: MAX77827 KA-09688 MAX77827AEFD+