I found this workaround in the internet
\obj\Release\net7.0-android\res\resources\drawable\maui_splash_image.xml
<!--This file was auto-generated by .NET MAUI.-->
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:width="108dp" android:height="108dp"
android:gravity="center"><bitmap android:gravity="Fill" <== I changed Fill to center
android:src="@drawable/noami" android:mipMap="true" /></item></layer-list>