I never said I don't use or don't want to use Avalonia. The issue is not the quality of Avalonia/Uno. They are wonderful. The issue is not availability of third-party toolkits -- they are there. The core issue is being psychologically assured that the first party is interested in supporting my platform with its programming languages and libraries. If MS can support Mac, ios, and Android -- what exactly prevented it from supporting Linux ?? This conspicuous lack of support in the presence of support for other non-MS platforms is the most bothersome bit. And supporting Linux can't be too expensive either. If Avalonia and Uno being open source with no backing of a huge corporation can do it in their stride -- then Microsoft sure as hell can do it. Again , this time economically --- why exactly is MS supporting Mac, ios, and Android -- not Linux ???. I hope you see my point. The absence of MS support is not bothersome technologically. It is problematic attitude wise. If they are fine with not doing GUI on linux (while doing it on all the other platforms) --- what other features/enhancements they will be willing to hold back from Linux ??