Yeah, I know — I should use reporting by test flight, but I was middle of quite important job and I hadn’t have time. So I dropped beta. And because it happened only with beta, I thought support is better way to give FYI than Bug
I can’t reproduce this exact screenshot on my iPad. I can switch between the floating and full keyboards and that preference is saved by the OS. It works fine with the latest beta of the app.
For me it kept floating all the time with the Hub. And yet it could be another issue of iPadOS (or my device) and if there was some bite in wrong feng shui it was fixed by disabling beta and installing official version.