I recently started working on upgrading my xamarin.android app to Maui, even though it is only for Android. The reason for this is that support for Xamarin has now officially ended. I would continue using xamarin.android, but I figured with no more support, the only way to plan for the future is to get the upgrade over with ASAP. There are some useful documents available at Xamarin.com (although I haven't actually had a chance to start working on them yet), but hopefully they will help. Good luck!