A lot of modern consumer and business oriented GUI apps run on JVMs and they look very platform native too. In finance, I’ve come across many of them. You can t

A lot of modern consumer and business oriented GUI apps run on JVMs and they look very platform native too. In finance, I’ve come across many of them. You can take a look at the upstream demo apps for Swing with FlatLaf and for JavaFX (rebranded to OpenFX). They perform nicely. I’ve been struggling with the JetBrains tools’ performance on large JVM projects but given the complexity and reindexing it’s justified, Visual Studio would simply hang indefinitely on such code bases, VS Code just doesn’t do this much. Then there’s also Kotlin Multiplatform and Jetpack Compose, and now Compose Multiplatform (desktop, mobile, web including JS and WASM). Their DSL is really amazing, truly compositional and resembling the way you do React. To me that’s the path cross-platform GUI will be taking now. On the .NET side, there’s Avalonia UI and Uno Platform as cross-platform alternatives, with Avalonia UI v11 (pending release) even doing mobile on almost the same code base.