Silverblue vs uBlue

I’m considering trying out an immutable distro after using Tumbleweed for the last 6 years.

The two major options for me seem to be Fedora Kinoite or uBlue Aurora-dx

My understanding is that universal-blue is a downstream of Fedora Atomic

So, the points in favor of Kinoite is sticking closer to upstream, however it seems like I would need to layer quite a few packages. My understanding is that this is discouraged in an rpm-ostree setup, particularly due to update time and possible mismatches with RPMFusion

uBlue Aurora-dx seems to include a lot of the additional support I’d need - ROCm, distrobox, virt-manager, libratbag, media codecs, etc. however I’m unclear how mature the project is and whether it will be updated in a timely manner long term

I’m curious what the community thinks between the two as a viable option