Change Text States with In-Slide Continue Buttons

The states should be read as they are interactive, however, I'd test it. Sometimes, it's still just easier to pull the text out of states for editing and whatnot. The end user doesn't know if what they see is state, layer, or new slide. I'd test it and then see what is easiest for management of the content.

https://articulate.com/support/article/Storyline-360-Accessible-Slide-Content