Driver shaft lean at both address and impact
I am also playing with the driver shaft lean / backwards lean at address at the minute. I am the same as you where my head tells me to line up the shaft and ball. Not delofted but in line. I am working at trying to get comfortable with it leaning back. I have watched videos on this and they say it helps with launch.
I can't imagine many pros have the shaft leaning back or anywhere near where they have it at address. the majority hit down 1.5 degrees. Having the shaft back would massively affect spin loft. the ideal is a slight deloft while also hitting up. tricky to do.
To get back to the original point. I am trying not to worry a whole lot and to how I perceive the face at address. it will be moved way off the ball in the backswing and will be subject to a few different twists from arm rotation and wrist angles during the swing.
Certainly something to work on and could give some nice improvements. interested to see some face on videos of your driver swings to see this in action.