by Aki Hamano on WordPress.org
WordPress plugin that adds settings to the Image block to display different images depending on the width of the screen.

Settings added to the block sidebar of the image block
Enable Responsive Image adds settings to the Image block to display different images depending on the width of the screen. You can add multiple images and set media queries and resolution for each image. If the screen width matches the conditions of that media query, it will switch to the corresponding image.