I did scan over some of the docs for the new Linux version of 1.1.1.1. It seems at the moment it only officially supports Ubuntu and Debian platforms. I would have preferred a smaller image size, such as Alpine or BusyBox. It also hasn’t yet added the functionality to use it as a proxy for specific traffic like some of the other apps. Moreover, it only has amd64 builds right now. These are not deal breakers, there are workarounds for some of these, but would have made things easier and less restrictive if the features were included already.
All of these features are planned for a future release of 1.1.1.1 WARP according to their blog, probably next year according to a forum post. When that happens it will make a much easier integration.