A virtual-hybrid course is one where the course is split into two parts. Some of the course is face-to-face in a virtual web-conferencing technology 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.
Your face-to-face virtual class will most likely be held in Zoom. Your instructor will give you the link and password to join the session or the directions on how to join from within the class.
Then, some of what would have been virtual lecture is moved online so you're meeting less often.
The online work could be a variety of different things. Here are some of the main ones:
All types of classes should be equal in rigor and time commitment.