Thanks! Sorry that your Fly6 drowned. It's especially annoying since they make claims of water resistance on their website. And is rain a forseeable event that a bike camera might see? For sure.
As to the image stabilization, I was so surprised at the difference that I checked to see if it was set on. It was. It may be that the mount is not as secure as it once was. I was looking at some footage from 2019, which looked much better. But it was from Norway, where the roads are generally much better than in the US.