It looked to me that some of the eggs, if not many, are white, indicating that they are not fertilized. Parents (good ones) will remove unfertilized eggs.
Angels will learn to hatch their young, but this simply can't be done in a community tank with other fish. Even the threat of other fish provokes not only aggression, but can cause the parents to consume the eggs (perhaps a warped sense of protection).
If a mated pair spawn in a community tank, you typically need to remove the eggs (what they are attached to), and try to hatch them and grow out on their own. But as mentioned, if you're trying to breed them, it's best to have the mated pair in their own tank.
If you do remove the eggs into their own tank, a dose of methylene blue (anti-fungal / anti-parasitic) and a gentle stream of air to keep water circulation around the eggs.
Be prepared as angel fry are very small so you need to start them off with baby brine shrimp, microworms, or other fine food (perhaps a powdered quality fish flake food or a commecial liquid fry food). Most professional breeders prefer hatching and feeding baby brine shrimp.
Good Luck. But don't be too disappointed if the first few spawns don't go well. It sometimes takes the parents a few spawns to get the hang of it.
