Continuing the discussion from Production ready End-to-End encryption and new user interfaces arrive with new Nextcloud clients:
We should document exact status of End-to-End Encryption across all platforms. I’ll make the reply to this a wiki post others can edit with updates, so we can easily keep track of status.
This is a wiki post. Please edit and improve this post related to status of E2E Encryption on Server, Desktop and Mobile. If relevant, please add date of your edit.
Please Note Missing Features Here
Have you tested e2e encryption? Please report how it went for you, including date tested. Please link to any relevant issues on Github. Thanks! 
Joe Anonymous – version x.x.x desktop – Tested recovery and x y z happened.