What are /r/4privacy's favorite Products & Services?

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>...and, what new does it bring to the table?

My question exactly, all of 4privacy's features seem to mirror Nextcloud, which is free on a self-hosted server, already open source, and multi platform, not to mention already has 5 years of use (10 if you include it's source ownCloud)

Spoken as a consumer, maybe there's a difference in the corporate world I'm not seeing.

4privacy is boasting end-to-end encryption. I was going to say Nextcloud doesn't have that, but it looks like I'm wrong: https://nextcloud.com/endtoend/. Seems like they have something, but not feature complete and disabled by default. Not sure how that works with calendar, extensions, etc. 4privacy might integrate all that stuff seamlessly?

The app seems to be some sort of cloud. Possibly not meant to be self hosted? A single cloud would have the advantage of being able to collaborate with others without having multiple clouds. Disadvantage is control of data, obviously. I don't understand how this project can be backed multiple times over when the description of the product is more than lackluster.

I'm a proud nextcloud self-hoster btw.