[TazeTSchnitzel]

There's a Computer Chronicles episode somewhere on YouTube (doubtless also on archive.org in higher quality) where a Microsoft rep shows off Windows 3's user interface, and they outright say it looks like Presentation Manager, so it'll prepare users for OS/2. Back when MS hadn't decided to kill OS/2!

[pjmlp]

IBM was able to kill OS/2 all by itself, regardless of Microsoft's own doings.