I checked the actual code and there is no e2ee, at all.
It has some of the basic setup stuff, like giving you a recovery file, and messages are seemingly encrypted, but everyone can decrypt everything and the platform has none of the structure to deal with all the issues proper e2e brings.

As a very simple test: If you write a message in a server, close the tab. Make a new account and open that chat. You can read the message. Meaning anyone can.
The way actual e2ee does this is it signs messages for anyone in the chat at that moment. Anyone new can't read old messages unless an old member sends them the contents.

Also this stuff is buggy in the actual functioning.

Also it's full of trackers and weirdly loads youtube for no reason.

Also it's full of nazis, the actual state is so much worse than the screenshots shown in the post. The top channels are "4chan" and "wagnersdom".