After reading this notice from MyQ: https://newsroom.myq.com/2023-10-30-A-M ... age-of-myQ
It's apparent that they are not tightening security around APIs, they are actively hunting and killing 3rd party integrations like @flyingDiver's awesome plugin that has worked so well over the years. I hate it that I have a MyQ Garage opener. I would never support a company like this. They are out for $$ and your data to sell.
Anyways, this plugin was so essentially vital to my overall automation and security, I had to find a solution. So I copied some of the folks from the HA thread. I grabbed a spare controller from the utility drawer. Ordered a soldering iron ($15 on Amazon; never soldered before in my life), a Zooz GEN16 and some shielded copper wire.
I soldered 2 wires from the underside of the board, where the button that controls my door is connected. I then connected the wires to the Zooz GEN16, set as a momentary switch. I now have control again of my garage door. I'm using a z-wave tilt sensor to let me know the status of the door. Good luck out there folks!