First off, thanks to all of you at OOTP for the hard work you put into v21.
The moving camera during gameplay was a little disorienting and dizzying at first, especially after a big rum drink
but it has grown on me. Everything else seems fine. (Linux version) There's a little bit of screen artifacting in the Classic 3D view but things appear to be rendering properly. I have not tried the Modern view.
Once again, thanks!