Cryptpad has been my go-to for a while now. Like kDrive they use OnlyOffice for online docs and sheets editing and collaboration, but unlike kDrive they provide e2ee out of the box.
I was on Nextcloud for a while but found it a bit cumbersome. Tried Filen which worked well for personal use but I run a small business and volunteer with a couple orgs where I support the cloud storage and collaboration apps, and Filen doesnโt work for this use case.
Cryptpad works well self-hosted (although they do have cloud offerings) and I donโt have to worry about maintaining a separate OnlyOffice backend either (which I had to do with Nextcloud). This ends up saving me money on server infrastructure too.
Iโm not sure why itโs not included in the graphic but I think it should definitely be in consideration.
Thanks for doing this.