Is there a place to see the users of Cribl Stream who have access via Okta?

Yes, you'll need to look in Okta. Users that get authenticated by Okta are "transient" so they don't appear in the user list, but they will show up in the audit logs with their usernames.

:gratitude-thank-you: that was my guess but wanted to confirm.

Also, try this: Go to Monitoring->Logs with the filter `channel=="auth"`to check log messages

Sweet! Thanks - I'll make a note of that.