Template Files for Advanced Layout Editor

As a follow up to this, I’m wondering what will happen with layout builder content for pages that I create and apply a unique theme template for. I’d like to add unique elements to such pages in the template, but also be able to use the template builder for the content on these pages. How can I use the template builder but still load the content using the page template chosen?

I don’t think you quite understood my question, but I will answer what I was able to figure out on my own for the benefit of others. For some reason, when the ‘default’ template option is chose for a page, and the layout builder is used, it does not follow the normal expected WordPress template hierarchy, but instead defaults to template-builder.php. This is not the case if you use the default editor, which was confusing to me. However, if you create your own custom template files and assign them to the page, it follows the expected hierarchy.

Yes, that’s correct. You can use the advanced layout builder and apply specific page templates you’ve created to a page, and it will use that template. I’m not sure why when not applying a specific template the page would not default to the page.php template as normal when the layout builder is used (I’d have to dig through the avia functions, something I don’t have time for), but this is an effective work around.