Looks pretty straight forward for this one thanks to the considerations in the setup of the new course player.

This should do it for you:

.lrn-widget-session-completion-status-open {
display: none;
}

Another nice feature of the new course player is that each course player page now has a unique class you can use to target specific courses. For instance, if you had a single course where the progress bar was irrelevant but you wanted to keep it for all other courses, you could add the following to Brian’s code snippet:

.lrn-course-player-XX .lrn-widget-session-completion-status-open {
display: none;
}

In the code above you would need to replace XX with the course’s ID. The ID can be seen in the URL in the course player. In this example: ntosto.docebosaas.com/learn/courses/42/open-enrollmentl/lessons, 42 is the course ID so I would use .lrn-course-player-42 in my snippet.

This would hide the completion status box only on this specific course.