I think the actual reason this works is because if you use DoH, you are probably also setting your resolver to something other than the default, which might not

I think the actual reason this works is because if you use DoH, you are probably also setting your resolver to something other than the default, which might not be poising the records. So the real answer to governments requiring dns resolvers to censor results is to ... not use those resolvers. which is actually relatively easy to do. But most internet users don't even know what a dns resolver is, much less how to configure their browser to use a public resolver that isn't big enough to attract the attention of your government.