In Confluence personal profile, my full name is wrong (its my email address) and cannot be changed other than using the 'Manage in Atlassian account'.
When I click the Manage in Atlassian account', I can enter my name name there and save, which it remembers the next time I do it, but the change is not propogated to my wiki profile - always showing the email address as full name.
This was not always so, and I think the email as full name only changed due to the recent ID logon process change rolled out by Atlassian for Confluence Cloud.