This is a task I've enjoyed pondering on myself, and I really do enjoy your approaches here @Airy as well!
I've posted my takes on the task in the thread Feature Request: Set Values for "Multiple" Variables in "One" Action, where you can also find some other approaches.
Setting up multiple variables to different tokens or values could for instance be set up as neatly as this:
Whereas setting them all to same value could be set up even simpler, like this (this same value could for instance be tokens like %Delete% or values like 0, as it would for many use cases):
This method is mostly thought out for tidiness, readability and ease of use, but it is also way fast enough for most all real world use cases (from my measurements adding only about ~12ms, total, to the ~2ms it takes for each Set Variable to Text action).