Somewhat? Mono is still really the only way to run older .NET (pre FOSS runtime/Core .NET) on non-Windows platforms. So Wine has historically kept a fork of m

Somewhat? Mono is still really the only way to run older .NET (pre FOSS runtime/Core .NET) on non-Windows platforms. So Wine has historically kept a fork of mono for use within Wine for supporting .NET apps. Modern .NET can be built for Linux, etc so this is less relevant now but there are still a lot of apps that depend on old .NET and Wine still gets value out of that. There are a bunch of downstreams that get used for various purposes (Microsoft uses mono for webasm embedded .NET for example) so it makes sense to give over ownership of Mono to the Wine community as they are best aligned with the original upstream's intended use case (as a full replacement for .NET). So yes it's on life support but arguably more in the sense that it has since specialized into a bunch of downstream projects. The upstream will probably mainly be used for coordinating common improvements that all of the downstream forks care about (which are mainly Wine and Microsoft).