I found this just now after searching for related topics. This is still going on, my comments were removed and I was banned from two different communities for daring to say both Hamas and Israeli are bad (when the comments I was replying to were only blaming Israeli)
Censorship is very much alive across lemmy, and certain communities definitely seem to allow only one viewpoint to exist.
I made a summary where you can see my comments which were deleted and for which I was banned, and judge for yourself: lemmy.world/post/12344087