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When using next-gen projects, since it's more simple than Classic ones, currently it's not possible to create filters for Boards or Backlog.
There is a feature request suggesting the implementation of this ability:
Please, click on vote and watch to receive updates about the feature.
I didn't find any feature specific for "Group by", so feel free to raise one on jira.atlassian.com (project JSWCLOUD) adding more details about why this feature is important for your environment.
Jira is a powerful tool that helps teams to plan, manage, and report on their work. We love using Jira, especially for its ability to track issue progress. But how to monitor the...
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