Native App Proxy vs Chrome Extension Local Capture

The Chrome App is not working anymore, that is really annoying because it seems we don’t have any alternative to use the proxy equally with the Native App. I browse as many resources as possible and more than one year later you still struggling with this problem. I love Postman and I pay for, however, without this feature I will no longer stay.

I need to capture on my local machine the traffic between the server and the browser, I use a classic Rails app as a server and React as the web application, both on its Docker container. The server works on port 3000 and React on port 8080. I need to capture traffic between them.

Can you provide me with the instructions to follow?

Thanks in advance.