New form metadata and cover image

I'm afraid that's not possible and you're going to need to use some sort of third party tool to help with that.  @Steven_Zhang has a tool for this that you can find here:
https://community.airtable.com/t5/show-tell/airtable-cool-link-previews-and-analytics-for-existing-airtable/td-p/141068

@Mygrate 

Your best bet is to use Fillout’s advanced forms for Airtable, which offers dozens of advanced features for Airtable.

On their Pro Plan, they allow you to customize BOTH the image AND the text that appear when you share a link.

Fillout offers hundreds of features that Airtable’s native forms don’t offer, including the ability to have custom favicons and custom text message previews and custom social media previews of your form.

Fillout also offers tons of other features, such as the ability to update Airtable records using a form, display Airtable lookup fields & Airtable rollup fields & Airtable attachments & formulas on forms, control access to a form via SSO or email domains, perform math or other live calculations on your forms, accept payments on forms, collect signatures on a form, create multi-page forms with conditional paths, create new linked records on a form, connect a single form to dozens of external apps simultaneously, add CAPTCHAs to your form, and much more.

I show how to use a few of the advanced features of Fillout on these 2 Airtable podcast episodes:

• Using Fillout to create an eSignature approval process with PDF file creation.
• Using Fillout to create an order entry form with line items.

Hope this helps!

If you’d like to hire the best Airtable consultant to help you with anything Airtable-related, please feel free to contact me through my website: Airtable consultant — ScottWorld

Hi there!

At miniExtensions, we've created a third-party form that integrates seamlessly with Airtable and provides a wide range of customization options to enhance your users’ experience and showcase your brand. Features include white-labeled extensions, custom favicons, and even custom domains:

Feel free to explore these features and many more on our site.