Question on X2D 100C exposure

Finally pulled the trigger to get the X2D, paired it with 28mm f4, experimented for a few days.

I realized when shooting outdoor during day time the shots tends to underexpose. It looks fine in EVF but on LCD the subject tends to be very dark. it is salvable in post processing but i would much prefer to capture it right.

I switched from center metering to center spot, and see a slight improvement but still often find myself doing +1-3 stops EV.

It is normal? does it happen to you all?

Thanks