A face-to-face-hybrid course is one where the course is split into two parts. Some of the course is face-to-face in a classroom with your instructor at a particular time and some of the course is fully online without a set time to meet. Then there is the typical homework and studying as well.
In a face-to-face class you would have homework outside of class that in some cases would be completed online. That doesn't change in a hybrid class. However, in a hybrid class some of what would have been face-to-face lecture is moved online so you're meeting less often.
As a student, you can expect that a portion of your instruction and assignments will be presented in an assigned classroom and partly provided online.
All types of classes should be equal in rigor and time commitment.