Proton Drive has a photos section with albums, auto backup, and other photo storage features. Furthermore, it meets the minimum requirements, namely:
- Cloud-hosted providers must enforce E2EE.
- Must offer a free plan or trial period for testing.
- Must support TOTP or FIDO2 multifactor authentication, or passkey logins.
- Must offer a web interface which supports basic file management functionality.
- Must allow for easy exports of all files/documents.
- Must be open source.