Maybe worth noting:
A) pkg: killed: failed to reclaim memory
<https://www.reddit.com/r/freebsd/comments/1evetpj/comment/>
B) pkg upgrade finding nothing after an incomplete upgrade
<https://github.com/freebsd/pkg/issues/2441>, in particular
<https://github.com/freebsd/pkg/issues/2441#issuecomment-2799590401>
> … I see what may be variations of this issue:
|>
> * pkg upgrade| following an interruption to an upgrade command
/> does/ proceed to install packages, but not everything
> that should be installed.
Scenario A is not rare. It may lead to scenario B.
Whilst B (with or without A) might not affect a base package, affected
users might perceive the overall upgrade experience (including base) as
unreliable.
HTH