Triopsi

Triopsi Block Visibility extends the WordPress block editor (Gutenberg) by adding responsive visibility controls to every block’s settings sidebar. Control which blocks appear on mobile devices, desktop devices, or both.
Key Features:
<ul>
<li>Hide on Mobile – Hide blocks on screens smaller than 768px</li>
<li>Hide on Desktop – Hide blocks on screens larger than 768px</li>
<li>Works with all Blocks – Compatible with core blocks and third-party blocks</li>
<li>Visual Indicators – See which blocks are hidden directly in the editor</li>
<li>No Configuration – Install, activate, and start using immediately</li>
<li>Simple Toggle Controls – Easy-to-use switches in the block inspector</li>
<li>CSS-Based – Lightweight solution using CSS classes</li>
</ul>
Perfect for creating responsive designs where certain content should only appear on specific devices. For example, show a detailed table only on desktop while displaying a simplified version on mobile.
Both options can be used simultaneously if needed (useful for draft content or A/B testing).

Triopsi Block Visibility

Control block visibility on mobile and desktop devices with simple toggle controls in the Gutenberg editor.

cyrillbolliger

Easily control the visibility of the featured image on singular posts and pages–while keeping it visible in archive pages, query loops, and other list views. This plugin provides a simple checkbox option within the post editor, allowing you to enable or disable the display of the featured image on individual posts and pages.
<h4>Key Features</h4>
<ul>
<li>Show or hide the featured image on singular pages and posts.</li>
<li>Seamlessly integrates with the WordPress post editor.</li>
<li>Simple checkbox toggle—no technical knowledge needed.</li>
<li>Compatible with most themes.</li>
<li>Supports WooCommerce product pages.</li>
<li>Lightweight and optimized for performance.</li>
<li>100% free—no ads, no upsells, no premium versions!</li>
</ul>
Perfect for bloggers, content creators, and developers who want precise control over the visibility of featured images on a per-post basis.
<h4>Important Notice</h4>
If your theme uses a custom method to load the featured image (such as the Twenty Seventeen theme), this plugin may not work. To ensure compatibility, use standard WordPress functions like <code>get_the_post_thumbnail()</code>, <code>wp_get_attachment_image()</code>, or the <a href="https://wordpress.org/support/article/post-featured-image-block/" rel="ugc">Post Featured Image</a> block.
Additionally, by default, this plugin only hides the featured image when it is loaded inside the loop. If your theme loads it outside the loop check out the first FAQ entry for a solution.

Conditionally display featured image on singular posts and pages

It works!

I was able to get this working on Genesis Press themes by adding the following code.

function wp234_featured_post_image($v) {
 global $post;

	if ( is_singular( 'post' ) && get_post_meta( $post->ID, 'cybocfi_hide_featured_image', true ) ) {
 return ' ';
	}

 return $v;
}
add_filter( 'genesis_pre_get_image', 'wp234_featured_post_image', 8 );

Works great!

Easily control whether the featured image appears in the single post or page view (doesn't hide it in archive/list view).

Triopsi Block Visibility vs Conditionally display featured image on singular posts and pages