Here is a build of a really powerful VESC. It uses 600V 600A IGBTs for the powerstage and its compatible with the latest vesc 6 firmware and vesc tool.
Forum discussion: https://endless-sphere.com/forums/viewtopic.php?f=30&t=89056
Design files: https://github.com/paltatech/VESC-controller
So if someone is interested in high power this thread is a good place to start.