I do not want to encourage either side here, but with two elementary school children, the teaching staff at the elementary school at least during the first lockdown did not exactly earn praise, and that is said very politely. Practically nothing happened except for worksheets being sent by email once a week. There was practically no communication from the teachers, neither to the students to explain topics and provide assistance nor to correct homework. This basically went on from March until the end of the summer holidays in September.
In the second lockdown, Teams was used. Two meetings a day including forwarding of homework results by the students and checking by the teacher. There was communication 24/7. That means feedback came back at 10 p.m. or on Sunday.
Here in Bavaria, one week of Fasching was canceled. If one week of vacation is replaced by one week of extra work, I would not be happy. Is this compensated at all?
Out of gut feeling, the effort is currently on par and everyone hopes that it will get better someday.
Much more interesting is the question of how much the Corona generation will have to catch up on. After all, we are talking about 1.5 years during which knowledge was only inadequately conveyed. This may not be so tragic for 1st and 2nd graders (although I now also doubt that the current 1st or 2nd graders being taught at home correspond to the level from two years ago and are actually 1st or 2nd graders), but everyone else will show knowledge gaps.