One of the things OFSTED looks at is the absence percentage, particularly the unauthorised absences. Of course schools are under huge pressure to do as well as possible, from their academy trust or local authority, and also from parents.
In normal times, a good head will look at how much time the individual has had off before making a decision. But in COVID times, how much time has been missed by that class, as well.
The pressure on our grand children's schools is much greater than it was on our children's schools 30 years ago.