I'm designing an Ubuntu app for Android which is running through a Termux chroot jail. The app requires the phone to be connected to a drone through the drone's generated Wifi network. This network does not provide internet access (obviously). Unfortunately, I still need the app to have general internet access while connected to the drone network. This means I need to be able to designate certain address accesses to use LTE and others to use Wifi. Any idea how to set this up from within the chroot jail (or externally)?
Note: I saw a question similar to this one answered 4 years back. However, it doesn't seem like an up-to-date answer was provided. Here's the post.