I'd argue that a lot of people are moving from Kafka to NATS. NATS and Kafka serve different purposes and for many use cases related to APIs, NATS has a lot more to offer, like like wildcard topic topologies.
it's the Kafka API, not Kafka itself, that I see as having become the standard.
Which is honestly a shame. It's an awful API.
Why?
Ce n'est pas un Kafka: Kafka is a Protocol
Apache Kafka is an aging open source project. It's time to accept that Kafka's protocol is what matters. (https://materializedview.io/p/ce-nest-pas-un-kafka)