I have a smart garage door opener, smart deadbolt, smart car (remote start/heat/cool/etc), smart thermostat, smart light fixtures, smart smoke detector... all of them function without internet, or power, as applicable. Light switches, buttons, keys, etc still work. Most smart devices are like that; the remote functionality is supplemental, not a replacement.
The problem is that is was advertised as a Bluetooth-powered toy to communicate with your child via recorder messages. "It's fun" -- I have thought, so I bought it. Only later I realized that it forwarded everything that was said to their servers via their "cloud app".
OK, I have thought, so they have the recording. But at least do they have some decency to not share it with the public? And that, indeed, turned out to be a little naive.
The toy became "broken" a few weeks before the leak when I was finally fed with it, but the damage is done.
Now I have similar worries about my NetAtmo devices. They do look cool and measure CO2 content in my rooms, which is the reason I bought them, but they also contain an always-on microphone for measuring "noise pollution", and I am not sure at this point if they don't transmit everything I speak in my room to the CIA, NSA, Russians, our reptilian overlords, or whoever else needs to hear the shit I say at home.
But "subscription model" for a garage opener is, sorry to say, stupid
Of the things in my home I want a garage opener to have pretty good reliability. I need a plan B if the power is out for a conventional one. I don't want to get locked out if I miss a payment (this is not like rent where these things are regulated and lack of payments are handled through actual notices)
Relying on the internet to open your garage is just naive.