The solution, as I understand it, is a little device which talks the protocol of the door opener that gives you fully local access the way it should be.
I'll try and dig out the link now in case it's of use to you.
EDIT: Here you go https://www.home-assistant.io/blog/2023/11/06/removal-of-myq... Hopefully that can point you towards a solution for your opener (and the state of affairs).