diff -r be944660c56a -r 3d72ae0968f4 wp/wp-admin/js/theme.js
--- a/wp/wp-admin/js/theme.js	Wed Sep 21 18:19:35 2022 +0200
+++ b/wp/wp-admin/js/theme.js	Tue Sep 27 16:37:53 2022 +0200
@@ -622,6 +622,9 @@
 			if ( _this.model.get( 'id' ) === response.slug ) {
 				_this.model.set( { 'installed': true } );
 			}
+			if ( response.blockTheme ) {
+				_this.model.set( { 'block_theme': true } );
+			}
 		} );
 
 		wp.updates.installTheme( {