https://m3.material.io/develop/flutter is the hub on material.io for Material 3 on Flutter. We should create a migration guide.

Existing guides include

• https://material.io/blog/migrating-material-3 for Android Views
• https://developer.android.com/jetpack/compose/designsystems/material2-material3 for Jetpack Compose

I should also note https://blog.codemagic.io/migrating-a-flutter-app-to-material-3/ from @TahaTesser, @HansMuller is there anything missing from it?