In the old Jira projects, one could see in the information of each Swimlane the status of the stories (To do, In progress, Done, etc...) but I can't find the way to visualize them in Jira Next gen proyects.
Thank you for reaching out to Atlassian Community!
Next-gen projects are more simple than classic and swimlane is a feature that was not added to yet.
There is a feature request suggesting the implementation of this ability:
Please, click on vote and watch to receive updates about the feature.