This doesn't feel like very constructive feedback. Have you actually tried 4.0 yet, or were you too put off by the Discord link to proceed?
IMO Audacity has never been particularly native-feeling, and I don't buy the McDonalds analogy - this release is still lightweight. It'd be a fair comment if they'd e.g. move to Electron, but Qt 6 is hardly that.
Audacity was fooling no one that it was a native MacOS app, or even a particularly well designed GTK app. The fundamental idea of WX is not sound. Turns out MFC is not a great abstraction for AppKit.
Even Qt uses some higher level native UI interfaces on its respective implementations.
Trying to shoe horn multiplatform UI into MFC? Just look at Unicode. It’s an unholy mess.
The only toolkit to do what it does? Qt does what it does, even if the approach is not the same (arguably superior), there’s also Tk. There’s also libui and IUP.
IMO Audacity has never been particularly native-feeling, and I don't buy the McDonalds analogy - this release is still lightweight. It'd be a fair comment if they'd e.g. move to Electron, but Qt 6 is hardly that.