wow, what about electron.js the bloated cross-desktop GUI, can LLM either totally modernize wxWidgets(to avoid Qt's license mess), or create some light-weight cross platform GUI widgets to make GUI easy on windows/macos/linux that is not resource heavy?

Working on this problem for the next version of NativePHP Desktop. Have dropped Electron entirely

wxWidgets carries too much legacy. A GTK3 fork maybe? Or a functional clone of QML with some improvements.

maybe gtk4 gui first then ask llm to recreate them natively on windows and macos

no, not gtk4 - they lost their way after v3