E2EE instability warning in docs - still applicable?

[ownerer]

This is a follow-up to #594 seeing as that one's closed and new replies are seemingly going unnoticed.
There is currently still a warning in the docs:

But the issue it refers to has been closed.
So the question is: is E2EE still unstable?
If so, how?
If not, can the warning in the docs be removed?
What about the experimental features on Synapse's side?
Thanks for clarifying.

[Half-Shot]

We might be able to tone it down a bit, but unfortunately the feature still depends on unstable bits of Matrix spec so we can't call it stable either. I'll see if we can revise it a bit.