@User, do the magic DRC checks assume your layout is in the low tap density region?

Yes. It's computationally more expensive to have different DRC rules in different regions in magic, so for efficiency's sake I am assuming low tap density. In all honesty, SkyWater's low tap density distance is way smaller than I've seen in any other process, so I'm very skeptical of the need for the high tap density.

Interesting, thank you, Tim