I'm curious why 16-bit support is being dropped. Too much additional codebase complexity for such a small use case, or are there technical reasons it's difficult to support in a 64-bit environment that somehow don't exist in a 32-bit one? Or is it simply not implemented yet due to a lack of dev time/interest in the feature?

I know 16-bit programs are incredibly niche these days, but I'd be way more comfortable with enterprises running their ancient software in a secure, up-to-date WINE environment as opposed to an actual Windows 3.x one with its nonexistent security. Even in an isolated VM, that kind of setup is one misconfiguration away from disaster.