NEW: X has started rolling out it's end-to-end encrypted chat for all users.
I was invited to start using it yesterday, so I asked a couple of experts if users should trust it. The answer: no, nobody should trust it at this point.
There are several reasons why, which they explained to me here.

X is now offering me end-to-end encrypted chat — you probably shouldn't trust it yet | TechCrunch
X's new encrypted messaging feature, XChat, has some red flags.

TechCrunch (techcrunch.com)