I can't find how to set (or even check) if I'm in remote or local control. I'm on the latest app version 2.11.0 build 845.
Which connection (Local or Remote) you are using depends on where the phone is connected. If you are on the same Wi-Fi of the smart devices then you are local. If you are using the cellular data or on a Wi-Fi network that is not where the smart devices are connected to, you are now remote. There is no way to manually set that.