I found some information here:
- https://rpm-ostree.readthedocs.io/en/latest/manual/administrator-handbook/
- Fedora Atomic | Installing Layered Packages Without Rebooting | by alex285 | Medium
- Atomic Host 101 Lab Part 4: Package Layering, Experimental Features - A Random Walk Down Tech Street
- rpm-ostree v2017.4 released — Project Atomic
It appears layered packages are updated with each new deployment, whereas the local packages will remain at their current release version. This post may be helpful as well in understanding the updating of layered packages:
Im still learning here too, so I don’t fully get it either.