What is the best image dimension for Google discover

What is the best image dimension for Google discover. Experts Suggested to use 1600 x 840 pixels image.

Google Discover is a news service of Google, to be brief. Google News or Google Discover is very important for a content creator. Google suggests using very attractive images to increase visitor attraction there.

As google said,

To increase the likelihood of your content appearing in Discover, we recommend the following:

• Use page titles that capture the essence of the content, but in a non-clickbait fashion.
• Include compelling, high-quality images in your content, especially large images that are more likely to generate visits from Discover. Large images need to be at least 1200 px wide and enabled by the max-image-preview:large setting, or by using AMP. Avoid using a site logo as your image.
• Avoid tactics to artificially inflate engagement by using misleading or exaggerated details in preview content (title, snippets, or images) to increase appeal, or by withholding crucial information required to understand what the content is about.
• Avoid tactics that manipulate appeal by catering to morbid curiosity, titillation, or outrage.
• Provide content that’s timely for current interests, tells a story well, or provides unique insights.