I just stumbled upon an interesting enterprise: Federated Computer. It offers many of the features of Software as a Service (SaaS) like Office 365, Box, and Dropbox, but guarantees complete privacy of user data. Other services are often mining user data and feeding to third party ad marketers and/or feeding your data into their AI bots.
There have been some privacy-oriented email providers around for some time (e.g. Proton email, but this is the first one I have seen that offers such a wide range of services.