Minecraft wiki entry for Best_biomes_for_homes, associated text: As stated previously, piglins and hoglins are potential threats, especially hoglins who cannot be pacified with gold like piglins. However, they can be warded off with warped fungi. If the player does not have gold to pacify piglins, they can similarly be warded off with soul fire related items.
Bastion remnants and nether fortresses can generate in this biome, potentially making the forest much more dangerous.
Mining gold ore or opening a chest near piglins will cause them to become hostile towards the player, whether or not they are wearing gold armor or have soul related items nearby.