Do recent events make you confident that you can trust every government administration not to abuse a hypothetical power to regulate speech? Freedom of speech

Do recent events make you confident that you can trust every government administration not to abuse a hypothetical power to regulate speech? Freedom of speech may have great value in helping to prevent (or reduce the probability of) totalitarian dictatorship and democide. If so, this value will only be realized infrequently, and only speculatively (e.g. when a politician comes close to taking power and fails, we can speculate that perhaps they would have succeeded if they had been able to regulate speech). It's possible that freedom of speech makes society worse in various ways, but that this is outweighed by the positive value of even very infrequent averting of totalitarian dictatorship or democide. One question is, does freedom of speech make totalitarianism more or less likely?