This is a relatively minor point, but pretty frustrating…
After the change a while back to allow for multiple states to be changed within one workflow step, I believe that you could easily identify when you had multiple states via the plural. If you had just one state, it would say “Set state…” and if you had multiple it would say “Set states…”.
Did I imagine that this has annoyingly changed recently where all workflow steps now say “Set states” even if it is just a single state?