The one difference in the same sharpness of turn between space and earth is that there's already 1g of acceleration always acting on you towards the earth.

So, say, a rocket liftoff always has 1g more acting on you than the pure acceleration of the rocket would suggest. Acceleration towards the ground would have you feel 1 less.

Any side-to-side will always point slightly towards the ground on earth (the earth's g and the side acceleration forming a triangle), while it would be a pure centrifugal effect in empty space. So technically on earth, you'd experience a slightly higher g force, but not by a full g (same as the hypothenuse of a traingle isn't the simple sum of the sides).