Was Doonesbury censored from hundreds of newspapers last weekend (because it was too woke)?

The only articles I've seen discussing the alleged censorship of this strip just rely on the tweet below:

Did you notice that there was not a @DoonesburyComic in your Sunday Paper (basically any @Gannett paper, including the @DMRegister) here it is! See the thread for all six panels! (1) pic.twitter.com/MpMygJlrZp

— Bob Krause (@KrauseForIowa) February 19, 2024