Thanks for this reference! Reading back over it, I have a suspicion that I’ve used the action suggested in that post at some point in the past.
Regardless, I’ve tried it again: Fix for trouble searching actions after v42 update
Ran the action to make actions searchable, installed a new action (Copy as Rich Text), searched for the new action. New action is installed as not visible in search context. So it remains entirely possible that users can install actions and not be able to find them in the future.
Again, this is a relatively minor issue, and may only affect people with lots of actions. Also, the solution I’m proposing is probably non-trivial. Nonetheless, I still think it’d be useful to have a search in the actions management interface.
Another option might be a default visibility setting for all installed actions, though that wouldn’t cover all of the same ground.
My current workaround would be to run a “list all actions” action (Create List of All Actions…) and then search that list.