Is there an existing issue for this?

• I have searched the existing issues

Have you tried deactivating all plugins except Gutenberg?

• I have tested with all plugins deactivated.

Have you tried replicating the bug using a default theme e.g. Twenty Twenty?

• I have tested with a default theme.

Description

Using the 'allowed_block_types_all' hook will prevent searching from the Block Directory when searching for blocks.

The reason we are using the 'allowed_block_types_all' hook is that we want to turn off the block for full site editing, which was added in 5.8.

If it is difficult to solve this problem, I would like to see a hook added that allows you to specify 'disallowed blocks' instead of 'allowed blocks'.

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Step-by-step reproduction instructions

1. Use the 'allowed_block_types_all' hook to restrict the block. For example, the following

add_filter( 'allowed_block_types_all', 'test__limit_block_types', 99, 2 );
function test__limit_block_types( $allowed_block_types, $block_editor_context ) {

	// 全ブロック取得
	$all_blocks  = [];
	$block_types = \WP_Block_Type_Registry::get_instance()->get_all_registered();
	foreach ( $block_types as $block_type ) {
		$all_blocks[] = $block_type->name;
	}

	$FSE_blocks = [
		'core/loginout',
		'core/page-list',
		'core/post-content',
		'core/post-date',
		'core/post-excerpt',
		'core/post-featured-image',
		'core/post-terms',
		'core/post-title',
		'core/post-template',
		'core/query-loop',
		'core/query',
		'core/query-pagination',
		'core/query-pagination-next',
		'core/query-pagination-numbers',
		'core/query-pagination-previous',
		'core/query-title',
		'core/site-logo',
		'core/site-title',
		'core/site-tagline',
	];

	$allowed_blocks = array_diff( $all_blocks, $FSE_blocks );
	$allowed_blocks = array_values( $allowed_blocks );
	return $allowed_blocks;
}

2. Search for blocks. For example, "countdown".

Expected Behavior

Current Behavior

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Code snippet (optional)

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WordPress Information

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Gutenberg Information

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What browsers are you seeing the problem on?

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Device Information

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Operating System Information

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