The “face” you describe is the back side not the face. The front has no bearing on brake clearance… except a steel wheel is close but still not a face. Where the drop in the rim for tire mounting is, is far more important.
Your measurement shown is not the number normally called out for wheels. The backspacing is more important and measure exactly opposite what you have shown. If you want to determine offset, or how far the centerline of the rim is shifted from the exact center of the wheel, you measure rear rim edge to the back side of the wheel that touches the hub and front rim edge to the back side that touches the hub. The offset is calculated back minus front. So deeper rear spacing than front is positive offset. And most cars these days have from 3/4’s to as much as 2 inches of positive offset. I can go into the “whys” but it is a bit involved.
I know this isn’t what concerns you given you want to install hubcaps but I hope this helps your understanding of the wheels in front of you. Hubcaps, as I’m sure you’ve noticed, don’t concern many people anymore.