I don't know if anyone else has tried this, but I have the IDE for b4j running on linux using winboat (https://www.winboat.app/), including the form designer.
I never got the form designer running on Wine.
Looks like a step forward, although winboat Windows runs in a VM accessed via a browser, so there's a slight lag. But it did run out of the box, so to speak. No Wine gymnastics required.
Not used it in anger yet. Has anyone else tried this?
I have tried it.
I don't like it.
It uses docker and install the full windows.
It consumes too much RAM and disk space. VirtualBox is better.
I still prefer using Wine and works better even with the designer. If you get black screen form, you can change the dpi value as explained on another thread.