@Shawn I suspect that these users are auto created, which allows you to integrate with Slack, Automation for jira, jira Outlook, Jira App chat applications, I suppose you can't remove them your self, but Atlassian who are managing the Jira core cloud application you can wait here for them to reply.
Hi, Jira users! Do you use Jira alongside Microsoft Teams? We want to hear how you’ve used the power of Jira Cloud and Microsoft Teams (via the Jira Cloud for Microsoft Teams app) to achieve a team...
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