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What I have done is present not matters of judgment, but matters of fact.
Fact: Apollo is not _the_ GraphQL company.
Fact: Apollo isn't the only one with a GraphQL client library
Fact: Apollo isn't the only path to creating a GraphQL server
As matters of fact, these are either true or false, but readers are free to evaluate which they are on their own. They shouldn't trust me, because I'm a stranger on the Internet. But then again so are you and so are most or all people here.
You say that if I don't disclose who I work for people will trust me less. That's silly, because people here shouldn't trust me at all, nor should they trust you, or anyone else, for the reasons I just gave.
In short: don't accept without careful scrutiny anything you read on the Internet, no matter who says it.