I spotted a technique for minimizing Rolling Shutter artifacts in Adobe CC, but not Resolve per se:
https://www.4kshooters.net/2017/07/29/h ... fectively/As far as I know, neither BorisFX, Sapphire, Red Giant, or any of the other usual suspects have plug-ins to solve this problem. There are some ways to manually dig into After Effects that can work to a point, but even there it's dicey. (I would bet there are similar fixes in Fusion.)
My best advice for people who run into this problem is not to use cameras with severe rolling shutter problems, like DSLRs or the Sony A7 & A6500. The rolling shutter issues with current Red, Alexa, Sony, and BMD cameras is pretty mild compared to the way it used to be.
If there's a way to use Optical Flow to do this in Resolve, I'd love to hear the step-by-step.