Embedding your Sketchfab models into your Magento e-commerce platform is as simple as copying and pasting your model's iframe code.
From your Sketchfab model page, click the </> Embed option below the viewer.
An Embed viewer pop-up will display and you can toggle on/off different options, depending on your Sketchfab membership, to customize the appearance of your embedded viewer.
When you're ready, copy the iframe HTML code to your clipboard.
Next, head over to Magento's Page Builder panel. From there, you'll want to add a HTML Code Element. To do so, find the Content section and expand the Elements section on the left-side of the Page Builder (below). Drag a HTML Code placeholder to a row, column, or tab set on the stage.
Hover over the HTML container to display the toolbox and choose the Settings (gear) icon. In the text box there, you can paste the iframe code you copied from your Sketchfab model page. Save your changes and your embedded Sketchfab model should show up.