Yeah, this thread wasn’t in the search when I checked. And you get more results with “light probe” instead of “LightProbe” but I don’t know if they are better results.
You can find a default set of prebuilt LightProbe j3o files in this post:
And I posted a code snippet that will load one here:
But that whole thread may have the questions you may have about your next steps (like if you decide you want to generate a probe specific to your scene or something).