Maybe in your case self-hosted/on-premise OnlyOffice is an option[0][1], but as I implied earlier the main issue currently isn't that there aren't alternatives

Maybe in your case self-hosted/on-premise OnlyOffice is an option[0][1], but as I implied earlier the main issue currently isn't that there aren't alternatives for each individual service but that often a combined package is not there yet. It's very likely that (if this becomes a bigger issue within the EU), the EU itself will provide more convenient options. [0]:https://helpcenter.onlyoffice.com/installation.aspx https://helpcenter.onlyoffice.com/installation.aspx [1]: https://www.onlyoffice.com/blog/2018/06/how-onlyoffice-enterprise-edition-helps-you-be-gdpr-compliant/ https://www.onlyoffice.com/blog/2018/06/how-onlyoffice-enter... EDIT: I missed part of your comment for OIDC provider there is Ory[2] (but again not bundled) [2]: https://www.ory.sh/ https://www.ory.sh/