You would need to send an HTML email, so you would need to be sending your email in such a way that it supports HTML code.
From Loom’s website, you can get the HTML code leading to the GIF thumbnail by clicking on the “Share” button, then “Embed”, then “copy thumbnail code”.
This is the HTML code that you will need to embed within your HTML email.
You can use a variety of online text to HTML converters to convert your entire email into HTML code.
However, it can be extremely challenging to put HTML code within an Airtable formula field because you would need to escape all the quotation marks (and possibly other characters) — and even more importantly, I don’t think that Airtable’s automations can use the contents of a formula field as actual HTML code within an email.
So it would be best to just directly paste in the HTML code into wherever you are sending your email from.
Airtable’s email automations support a subset of HTML tags, and Make’s email automations for Airtable support all HTML tags. (Make might even be able to use a formula field as the HTML code, too.)
p.s. If you have a budget for your project and you’d like to hire an expert Airtable consultant to help you with any of this, please feel free to contact me through my website: Airtable consultant — ScottWorld