Ok, The simplest option would be to put dimmable bulbs in the breezeway and then use the zooz single gang dual switch:
The top half of that switch is a dimmer and the bottom button is an on/off relay, so you can use the on/off for the garage.
Or you could put a dimmable bulb in the garage and then use the on/off button for the breezeway. Either way would work.
It is going to depend on the exact wiring that you have, though, because you will need a neutral wire for the dual switch.
Then you would set up the switch in the house to be part of a “virtual three-way“ with the switch in the garage. The two switches do not have to be directly wired to each other, each can communicate with the hub which then passes the message on.
Zooz is the house brand for TheSmartestHouse . Com . They have very good customer service and can help you with figuring out the wiring for your set up and whether it will be possible. So just contact them through their site.
The other alternative for the garage if you can’t put a dimmable bulbs in either location is the Coolcam 2 button switch. It’s not as well engineered and customer support can be challenging because it’s a Chinese company. It used to work quite well with smart things, but I honestly don’t know if anybody has it working with the current V3 app or not. But it does exist. In this case, each button controls a different light.
And again, you would set up the switch inside the house as a virtual three-way.
Other than that, there aren’t a lot of options but there may be some if you want to keep looking.
In all cases, it’s going to depend on the exact wiring, so you will need to map the circuits to know exactly what will work where.