It’s often unclear whether the decision to remove politically unfavorable content is a pure business decision or the result of informal lobbying of such companies by the government. The White House has often made requests about the removal of material about certain stories, including e.g. the Hunter Biden laptop affair, and it’s rarely clear whether these requests are entertained due to general political sympathy, the threat of unfavorable regulation, or what. If the government directly censors citizens’ speech that’s a 1st Amendment concern, but if they strongly insinuate that a company will face a hostile legal climate unless it censors a citizen’s speech, that is afaict not illegal.