ARCore HDR Light estimation

Unity version: 2019.4.13f1, ARCore version: 1.20

I am trying to implement HDR Light estimation with ARCore but I cant achieve satisfactory results.

Im using model of Cola can and I would like to achieve great reflections. I have tried a lot of possibilities but still it wasnt good enough.

This was so far the best result

For starters, I have a few questions that keep bothering me:

• Color space linear vs gamma could be a reason why it wont work correctly?
• Graphics API GLES2 vs GLES3 could be a reason why it wont work correctly?
• Depth camera is required?

I have tried also reflection probes on model, setting up some skyboxes to check if it will affect model but there was no difference.

On ARCore guide they say something about using HDR Cubemaps but I cant figure out how to use them, where to put them.

If you have some samples with already working HDR reflections I would appreciate if I could take a look on them to understand how it works.