The thing I'm most excited about in materialize is the ability to create Sinks (https://materialize.com/docs/sql/create-sink/). The combination of 1) streaming transformations over realtime source data and 2) streaming outputs into external systems feels like the way of the future IMO.
I saw a dbt-materialize plugin (https://github.com/jwills/dbt-materialize) out there in the wild. My guess is it's not ready for primetime yet, but would love to bake support for materialize into dbt when the time is right :)