If they can get on to the 'right' course, then how they do in that course will be the main thing.
Universities / employers at 18 will remember that this is the cohort with the massively disrupted learning and inconsistent grades.
Well they will, but will they give an offer to a child who has say a set of 6s and 7s, as opposed to a child who got all 9s? Which one will they go for assuming A-level predictions are similar?
It will effect children for the future.
And schools who give honest results the children are doubly penalised as they will be up against others that are their standard, but given higher grades, but people will assume that their grades are inflated too.
And last year there were overpredictions. This year, I suspect will be worse, as they know it's on teacher assessments, so those that overpredicted last year to look better than the rest, may well doubly overpredict to try and beat the others.
DD1's got a friend in year 11 and the teachers are sending them home with the questions and answers the night before they do the tests for example. So assessments can be "assisted".
But, Op, if it's any comfort. We know one school that predicted far too high. The children themselves are not happy about it from what I've been hearing from dd2 who has friends who were there. Firstly they're not proud of the results. They know that they didn't earn or deserve them, even the ones they probably did deserve, because others are clearly inflated, they then question the ones they do deserve and wonder if they are inflated too.
Some of them have dropped out of A-level courses, or even dropped a year because they started A-levels in subjects they'd been told they wouldn't get the grades needed, and they apparently did-but don't have the knowledge so found it too difficult.
They're also struggling with the idea that they will have to do exams at the end of the course, because they feel that they are going to do worse and it's going to be obvious. It's actually decreased their confidence in themselves not helped.