Is it Hope calipers that have an interference problem with Shimano discs, or vice versa?

From experience I’ve found that:

1. The pad of an E4 is deeper than the braking surface of a Shimano RT76 rotor. No interference problem as such, but not getting full efficiency from pad. Swapped to a Hope rotor.

2. The rivets of a Hope 203mm floating rotor do catch on the post-mount slot of an M785 XT calliper. I suspect this is the situation you’re worried about.

Thank you!