I use Delphi with its FireMonkey framework. It targets all major operating systems (Win/Lin/Mac/Droid/iOS) natively. From all the cross-platform frameworks that I've seen in 25+ years of working in the industry Delphi's switching target is the easiest - a simple combobox and kaboom!, you're good to deploy for that OS.
Their roadmap include, in some years I suspect, probably 5, to also target WASM at which point, if Embarcadero is smart enough to lower their ridiculous license pricing to under $300, will become the most powerful tool to write cross-platform applications.
Their roadmap include, in some years I suspect, probably 5, to also target WASM at which point, if Embarcadero is smart enough to lower their ridiculous license pricing to under $300, will become the most powerful tool to write cross-platform applications.