I think it's discussed only where it's considered "on-topic". In my experience, many politcal articles are quickly removed as off-topic unless there's some technological bend to it. For example, politics in a thread about Julia 1.7 release would be "off-topic", politics in a thread about net neutrality might be on-topic but only up to a certain degree.
I don’t think I’d go as far as saying it’s a full blown echo chamber either. But theres a pretty clear orthodoxy on certain topics here.