Anyway, what keyboard are you using?
I ask because I use (always have, not just for the beta) GBoard, and at full height, and have yet to see it cover any other screen element.
If using another keyboard, might try GBoard and see how it goes
Thank you for your feedback. If you haven’t already, please send us an error report to help us debug the issue. Please also keep an eye out for any other issues you may encounter. We apologize for the inconvenience and appreciate your contribution to the beta program.
One UI Beta Team