Turning off Tool tips does not get rid of the lesson bar. (and I don’t really want to turn off tool tips anyway. Sometimes it’s useful to remember exactly which Icon goes with which tool)
I know it’s supposed to be more new user friendly, but it’s kinda distracting to those of us who’ve been using DS for a while now.
Edit to add - I figured it out.
I had to go to Customize - Actions (Workspace) and move the Enable Lesson Strip to the Workspace Menu (I could probably have moved it to any Menu) and then turn it off.