A month is not enough time for any meaningful change in an organization the size of Deepmind/Google. These models were surely the result of work streams and teams that started under Demis. I think Demis can safely feel proud Deepmind is getting back on track.
Popular claim by IBM PR, but the issue was that OS2fW component (which reused locally-installed Windows 3.x) had binary patches it applied to windows core component to turn it from DPMI host (which owns 32bit pagetable etc.) into DPMI client so that Windows would call to OS/2 for handling paging setup, and other details of interop.
The patches were made for Windows 3.1, but not for Windows 3.11 - since the changes resulted in binaries with different offsets, Windows 3.11 used under OS2fW would fail.
I eagerly wait more info but sounds like Deepmind without Demis calling the shots has been unleashed and are operating at full speed? Shocker!
At this point it is a meme of course, but where is 3.5 Pro :)