This is basically true. Liberal or conservative, everybody I talk to who can communicate ideas without injecting vitriol into every word agrees that 90% of "censorship" of conservatives is just censorship of standard low-value hateful garbage, and that genre of speech, while committed on all sides, is highly overrepresented by conservatives, which makes life hard for the majority of conservatives who are rational.
PragerU has their content taken down and/or restricted on a regular basis from big tech platforms. Their videos express generic and cliche conservative ideas and values. While many people may not agree with what they say it is a far stretch to call it "low-value hateful garbage".