Our family is directly impacted by this.
Last March, as school was rendered off-limits, marks were frozen. Meaning that whatever you had by mid-month was kept for the rest of the year, no other work needed (for two-and-a-half months). If you wanted to increase your mark, you could. My kid completed all assignments (mostly textbook-based work) until the end of the year.
Not a single lecture in English, Foreign Language, Science (some videos). One math class used last year’s lectures. Another had links to a few videos. There were three virtual social science classes that students could attend for extra credit. So, less than four hours of live virtual class time in that two-and-a-half months across all subjects.
It’s incredibly hard to determine what the next move is.