First things first, .NET 6 RC1 and .NET MAUI Preview 8 got released this week but the big breaking news is that .NET MAUI will be ready for Production use (General Availability) only by early Q2 of 2022 (next year) and NOT as originally planned with .NET 6 GA by Nov 2021.
This is definitely sad news for all those Xamarin/.NET MAUI developers who wanted to leverage this brand-new architecture. Hopefully by that time, if additional targets such as Linux/Wasm gets onboard, it would be worth waiting.