Cryptpad is E2E encrypted. At a first glance, this is not.
Which also means its features won't be constrained by the E2EE architecture.
At a first glance, it seems the suite numerique wants to be simpler than full traditional office documents. It seems to compare itself with notion and outline.
CryptPad has very simple modules and also more complex, OnlyOffice based modules.
Ultimately, if the suite numerique's frontend is able to send editing patches as JSON, it should not be too complicated to make it work on a CryptPad server and make it E2EE, which is exactly what the CryptPad team did to OnlyOfficr (the "why not both" option)
It would not really make any sense to try to take all Docs in CryptPad, as Docs is both client and server code. The client has both and editor but also sharing features.
CryptPad integrates editors.
However Docs is based on BlockNote for the editor and this editor has been on our watchlist to replace our aging CKEditor which is used in CryptPad. This would make sense to integrate in CryptPad.
As it was said CryptPad is e2ee which is a LOT of work. Then it has 9 types of document files (Docs has 1). CryptPad also has a drive. It also has shared folders, team drives, import and export features and finally also a Survey Tools with e2ee protection. There are many more little or larger details.
Of course as a part of the Cryptpad team you have a bias, but if I'm looking to replace Google Drive and its functionality, is Cryptpad a good replacement, or is there another one, maybe Nextcloud(?), that could do it better (just user interaction etc wise, not E2EE)?
Would you have a list of things Cryptpad can and can't do compared to other solutions? It would make choosing the best replacement easier.