Yes, especially since he threatened to sue the ADL, which of course didn't happen because he's all talk. Sometime in January he was invited to visit Auschwitz and make a public spiel about how he was wrong about anti-semitism or something like that. Linda Yaccarino (the formal CEO) posted about changes to their hate and defamation policy shortly thereafter.
I don't believe that I follow any anti-semitic accounts on X and I in any case don't sympathise with such notions (whatever it means, it's a very misused and watered-down concept at this point) so I haven't noticed if anyone got scrubbed on that basis. I see this as a clear about-face from the supposed "extreme freedom of speech" principle that Elon talked about up to and after his Twitter takeover, and this is not the first time he has shown himself as two-faced and unreliable, so I have little expectation that the hammer won't slso start falling elsewhere.