Hello everyone,
I have opted for the "Slack notifications" option for a certain page in my space with all children pages included (Edits on this page, Comments on this page, Adds a child page, Edits a child page, Comments on a child page)
The feature works great for me as I need immediate updates if a page gets an update and a comment specifically. The only issue is that some of the users appear as Anonymous in Slack:

I tested with several other accounts that appear just fine and I think it's not permissions related as I tried all options and I get the notification even like this if the person has permissions limited to "Add/Delete comments" only. Also, we checked the Profile and visibility within the Atlassian account and every piece of info is visible to "Anyone"
Your help is appreciated!
Regards,
Martin S.