Add split tunneling to the app for amazon devices and have the app remember the settings. This is feature that many other VPN services have. I realize that it is included on other operating systems. If it is included, I haven't been able to find it.

Have an official Flatpak with the GUI. I could be wrong, but having the VPN installed on the OS makes the browser extensions redundant. Wouldn't that free up developers to focus on other things like wireguard?