I don't know much about pears or figs, but I've learned a couple of things about apples before.
Apples do not breed true to seed. Absolutely you can grow apple trees from seeds, but do not expect the apples from those trees to taste the same as the apple the seed came from. I've read, but cannot verify that something along the lines of 1 out of every 250 apple seeds will produce a tree that has edible fruits. The rest will either not produce fruit or will produce "crab apples". If the quality of the fruit doesn't matter to you, then it could be really fun to grow a tree from seed and in about 4 years or so, see what kind of apples you get! Maybe you'll develop a new Honeycrisp 2.0! However, if you are looking to get fruits that you want to enjoy, you best bet is to keep doing what you are doing with the branch cuttings. By rooting the branches, you should eventually get the same fruit as you did from the tree the branch came from. That is similar to how most orchards are produced. Either rooting branches or by grafting them.
Good Luck with either adventure you choose to go with! The prospect of finding the next tasty apple was always a great one for me, but I'm not sure what would happen to my mental health if I waited 4 years to get nothing edible.
Keep us updated!
