Can't see "Finish the course" button in Maple

In Lilac release there was a message:

When a learner reaches the end of the course, they will see a new navigation button directing them to “Complete the course” if they’ve passed or completed an audit course.

I haven’t got the chance to check it in Lilac, but now I installed Maple and can’t see this button in any way.
There is a related post on this, but it seems these configurations just enable the certificate but not the Complete the course button.
Has anyone else solved this?
@tabrezgoilkar @HenryV