It’s interesting to note that Star Alliance’s website does not list London Heathrow as among the airports with Gold Track, though London Gatwick, Manchester, Birmingham and Bristol are listed. https://www.staralliance.com/en/gold-track

According to Heathrow Airport’s website Fast Track security is currently offered by some airlines to passengers traveling in premium cabins and to selective frequent flyer card holders as well as to American Express Centurion Card holders. The Fast Track service is currently unavailable for online sales, which may be good news to some.
https://www.heathrow.com/at-the-airp...ne-eligibility