BTW NHS does recommend abdominal thrusts which as described is the same or very similar to the Heimlich maneuver. Link shows when and how to use it
https://www.nhs.uk/common-health-questions/accidents-first-aid-and-treatments/what-should-i-do-if-someone-is-choking/#:~:text=Place your arms around their,movement up to 5 times.