End to End Encryption in Jitsi Meet

Whether End to End encryption is implemented into jitsi-meet?

According to https://jitsi.org/security/, it says in the important note that Jitsi Meet is now able to manipulate encoded packets… Whether that means, JVB will not decrypt before sending the stream to participants (https://jitsi.org/blog/e2ee/)?

Is there a way to interfere in between and get the media stream of each participant?