I Have an Aquatic animal farm located in a Frozen ocean biome. From what i understand about spawning rules Squid should spawn in all ocean biome variants in Bedrock as long as the block of water they spawn in has a clear path to the sky. I have both Cod and Salmon Spawning in the pool but squid do not spawn, i've also gone underneath the ice surrounding the pool in all directions going over 60 blocks clearing out any turtles/dolphins i see since squids share a cap with them.