I don’t think that is cherry leaf spot. I think it looks more like insect damage to me. Also cherry leaf spot is much more common on tart cherries. Here are two links that show what cherry leaf spot looks like.
https://www.gardeningknowhow.com/edible/fruits/cherry/treating-cherry-leaf-spot.htm
I am not sure about your pear issue. I don’t grow pears. Perhaps someone else can answer that one.
The damage on the Golden Delicious looks minor. But I can’t tell from the picture what caused it. However, Golden Delicious is susceptible to both fireblight and scab. Here is a chart that shows disease resistance for Golden Delicious and a bunch of other apples.