I’ve heard of two users trying out Windows 11 and having the same experience, the first time that Windows 11 started up Paratext looked odd, the arrangement of windows not right. But when they restarted Windows 11 Paratext was fine.
So if you are trying Paratext in Windows 11, try restarting Windows 11 if Paratext appears funny.
If you notice other problems with Paratext in Windows 11, let the Paratext support team know. We are not officially supporting Windows 11 yet, because it has not yet officially been released, but we would like to know of any problems. Also send feedback to Microsoft, that your Windows 11 is having problems running a Windows app (Paratext) that works fine in Windows 10.