Thank you so much for checking it out, and for the helpful feedback! Hoping to put the next build out tomorrow with native Linux and WebGL options. I'm also certainly working on a new UX flow for the casting selection issue.
Also, I'm so sorry for the confusion - Identify doesn't do anything yet. So you're not crazy on that front. XD It will be a subsystem related to the tooltip. I'll fix the text to avoid confusion until it's implemented.