Q.Fruit Trees
we had loads of blossoms then buds like fruit on our pear/apple/and cherry but they all disapeared

Certified GKH Gardening Expert
They were probably eaten! There are many animals that will do this.
Here are some articles that will help you with animal control:
https://www.gardeningknowhow.com/edible/fruits/fegen/squirrel-proof-fruit-trees.htm
https://www.gardeningknowhow.com/edible/fruits/fegen/protect-fruit-tree-birds.htm
https://www.gardeningknowhow.com/plant-problems/pests/animals/birds-eating-flowers.htm
https://www.gardeningknowhow.com/plant-problems/pests/animals