https://bugs.winehq.org/show_bug.cgi?id=57833
--- Comment #3 from Andie andiejs@gmail.com --- Someone with more technical knowledge has stated the following, which may help target what needs to be done without testing on a specific application:
"As previously stated what is missing is D2D feature level 1.3. Wine only supports level 1.2. As far as I am aware, the 1.3 features that JUCE8 needs are storing paths in GPU memory and the new flip-type swap-chain mode for windowed apps, but of course only full 1.3 feature level support would ensure long-term compatibility."
(link to post https://forum.juce.com/t/juce8-direct2d-wine-yabridge/64298/28)