External Storage SFTP public-key authentication setup is misleading and the “Generate keys” option is missing

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• Nextcloud Server is running on 64bit capable CPU, PHP and OS.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

Trying to mount External Storage using SFTP and Public Key authentication in the user settings. The doc https://docs.nextcloud.com/server/25/admin_manual/configuration_files/external_storage/auth_mechanisms.html states that a key pair is generated by nextcloud. The Screenshot in the doc shows a generate keys button.

• However, there actually is no such button. Instead, it wants me to enter a public key.
• Also the text description seems misplaced. It says ... You may also allow users to mount their own external storage services. what is obviously an information supposed to be in the admin settings, but it is in the user settings of a non-admin account.

Steps to reproduce

1. Setup NC
2. Activate External storage
3. Go to user settings -> External Storage

Expected behavior

Behavior should match what is described in the docs or the docs should be updated. Also Non-admin users should not see admin text description.

Installation method

None

Operating system

None

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

No response

List of activated Apps

External Storage

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response

Start by comparing the admin_manual/configuration_files/external_storage/auth_mechanisms.html documentation with the user settings → External Storage screen described in the issue. Verify the missing “Generate keys” option and misplaced admin text, then confirm that the documentation and non-admin UI agree when the work is complete.