Change the name people see
- Open the gear, then General.
- Edit the name or the avatar.
- Set the default language for this workspace.
- Save.
You should see the new name in the sidebar. Reload if the browser tab keeps the old one. Your own language is separate. Set that under account settings, Personal details.
If this fails: The name does not change
Save on General, then look at the sidebar. The browser tab can keep the old name until you reload. The language here is the workspace default. Your own language is under account settings, Personal details.