When looking at the final exams, you also need to consider how calculating results have changed too.
I did maths at a top university in the 90s.
I had to pass the first year, but then no exams counted until the finals in 3rd year.
I had 9 papers, all of which had 8 questions, which represented 2 x one term lectures (split by question 4 and 4). You were told answering 4 questions per paper was doing exceedingly well.
To decide what degree you got they had a very complicated way of working out different scores. You got:
Total score per paper
Sum squared per paper (that was if you got 10 marks on question 1 and 8 marks on question 2, you would get 102 +82 = 164 marks. This was to reward getting to the end of the question more than doing lots of half questions)
Each question was marked out of 25 and score 20-25 = alpha, 10-20 = Beta and 5-10 = gamma (I think). You then got a mark that was 2x (no of alphas) + (no of Beta)
To get a 1st you had to score highly in all three, but it was only the overall mark that mattered; you could get 0 on a paper and still come out with a first if you did well enough at the rest.
I got a high 2:1 with one brilliant paper (almost full marks on the questions I did), one quite good paper, one okay paper and 6 terrible ones - one of them I got one gamma and all others were under 5/25 marks.
Dd did maths recently at a different top uni.
They had exams in 2nd and 3rd year that counted.
They had to pass every exam with at least 40%. I think that is fairly standard now. They do moderate the exams so it's not exactly 40% iyswim but that's the aim.
They are expected to try and complete all the questions and there's far more than 8 questions.
So, they do have simpler questions, but are expected to do more questions and they have to be able to do all the subjects. Getting 50% on every papers in my day would have been enough to get a first several times over.
One reason why I did have terrible papers was because I could ignore the subjects I didn't like knowing that it was more important I completed as many questions on the subjects I liked than struggled to do a few half questions on the subjects I struggled with.
I'm not disagreeing that exams are easier or not. I have not enough knowledge about it (I specialised in a different area than dd, although we did agree that the same subjects were hard). However I'm just saying that although hers look easier on paper, she also had to do better in.
And I think that did make her a better mathematician than me. As I said, I ignored revision for Algebra in order to concentrate on what I was better at - and scored I suspect in the single digit percentagewise. She couldn't do that - and scored a very respectable 60% approx. Because she found it hard she had to put more hours in.
So she came out better rounded, although perhaps I was stronger at my specialism than she was at hers.