The phrase "a preference about" is correct and usable in written English.
It can be used when discussing someone's choice or inclination regarding a specific topic or matter.
Example: "She expressed a preference about the type of music played at the event."
Alternatives: "a preference for" or "an inclination towards".
[No Header] - The user has not expressed a preference about third-party tracking.
Pressed to give a preference about which team he ends up on, Chencinski did not have an answer.
He should command well more than $10 million per year and has done nothing to undercut his market value by stating a preference about where he will go.
As a writer and editor, I don't have a preference about whether people are reading our journalism on paper or a screen.
While the Conservative leader, David Cameron, has been careful not to express a preference about the outcome of November's US presidential election, Johnson laid bare his support for the US Democrat candidate in an interview with Square Mile magazine.
Say you have a preference about the kind of treatment you want from your doctor.
We invited any eligible patient who did not want to take part in the randomised trial because of a strong preference about treatment to join a non-randomised preference arm.
And a general interest newspaper does not have to wade into the waters of a roiling constitutional debate in order to express a policy preference about gun control.
We invited any eligible patients who did not want to take part in the randomised trial because of a strong preference about treatment, to join one of two non-randomised preference arms.
These three groups shared a preference for details about policy.
He expressed a preference for talking about what should happen, rather than what would happen, and disliked predictions.
