Some back end devs unwilling to learn React are planning to try it.

However as I understand, it's using WebSocket. At my previous job, building a customer service view that used it solely for real time updates, I wouldn't use it for anything critical without some heavy fault tolerance (like checksums or a simple incrementable number to count how many messages have been sent). The messages can be randomly dropped by whatever is in between.

I wouldn't want to write in Stimulus as a front-end dev. It looks like writing AngularJS from 2012, way too imperative. Template and logic are also separate which makes legibility harder compared to JSX.