They’ll be the same between engrave and a cut.
Basically, the head has a focus mechanism with a number of steps/positions. The material height is either measured by the scan to set the focal height, or it uses your manual focal height setting, and then it adjusts the lens to the appropriate position which correlates to the distance.
I’m not sure if your engrave is actually in focus either. With an engrave you have a lot more leeway than a cut.
Here’s a Gift of Good measure i did a while back. You might be able to compare it to yours.
The good news is that if it is out-of-focus, and you’re happy now with the engraving, you’re going to be really happy when it’s right.