An example for your understanding, on bedrock: If I make an iron golem farm and a sugar cane farm one hundred blocks apart from one another or more within visible render distance of each other, then I stand centered between them, niether one spawns or grows(tested this for a total of 13 consecutive hours). Although if I stand next to one of them only that one will work as normal and even then the output numbers of items are the lowest of any mincraft version (tested for 11 hours and comapared with same farm designs). Compared to Java, ps4, and xbox one edition. This occurs with all mob spawning and plant growth game ticks. Not sure how helpful this is but hope this helps to see a change.