How should I process the "meta" array of objects. Since GA4 cant process objects? What I've done now is to JSON-stringify it with this code:

function() {
  var obj = {{DLV - experiment_results.experiment.meta}};
  return JSON.stringify(obj);
}

Making it show up like so in the debugView

I'm a bit confused as to why you're passing this info to GA4?

We are passing everything that comes with the API call. What data should we be passing to GA? This is our dL

dataLayer.push({
  event: "experiment_results",
  results: [
    {
      experiment: {
        key: "prepaid-description",
        variations: [false, true],
        weights: [0.5, 0.5],
        active: true,
        coverage: 1,
        condition: null,
        namespace: null,
        force: null,
        hashAttribute: "id"
      },
      result: {
        inExperiment: true,
        variationId: 1,
        value: true,
        hashUsed: true,
        hashAttribute: "id",
        hashValue: "9759064.1701950960"
      }
    }
  ],
  eventTimeout: 2000,
  gtm.uniqueEventId: 142
})

I'm assuming you're using our SDK, in which case the trackingCallback should be used to track the experiment exposures