There has never been an official integration between ST and MyQ (or at least I don’t believe there was). There has been a community developed method that has been ported to Edge but now requires a PI or other always on PC or server, etc. : https://community.smartthings.com/t/st-edge-smartthings-myq-edge/248988
another alternative to MyQ ---- Door Remote + Relay + Tilt Sensor + Virtual Garage Door: https://community.smartthings.com/t/myq-lite-for-edge-be-able-to-use-without-having-to-create-a-server/260019/6