how do you handle message ordering with Kafka.

hey everyone, were architecting a new system that relies heavily on Kafka for inter-service communication. a key requirement is ensuring that messages related to a specific user or entity are processed in the order they were sent. i know Kafka guarantees order within a partition, but what are your strategies for designing around this? are you partitioning by user ID, or using other techniques to maintain order for critical workflows? curious to hear your real-world approaches.