My system has been stuck on on Snapshot 20230316 for a few updates, with it
attempting to re-apply daily in addition to any subsequent updates. Upon
restart the new snapshot isn't viable and reverts to 20230316 snapshot. 

I managed to isolate the issue to systemd 253.1-3.1 and udev 253.1-3.  I
managed to move the system forward by locking the systemd package with zypper
addlock, apply transactional-update to the remaining packages, restarting in
the updated snapshot, then removing the lock on systemd to apply
transactional-update again. 

I would assume that these two packages managed to install in Tumbleweed without
issues, but this experience seems to reveal some packages require an order of
operations that MicroOS's snapshot design that makes it difficult to cope with.