Ok I got this working in some sort of way, but you will need a pi or machine to run docker.
Go here and set this up:
https://hub.docker.com/r/silvenga/unifi-udm-api-proxy
Make sure you get the correct build.
In the yml file make sure you update the ip for your UDM or NVR and add a second port under the ports config
- 5080:80
In the Unifi Protect Smartthings app put in the IP of the docker container and port 5080. Make sure you are using a local username and password.
So far it found the cameras, but only motion works. It is very reliable for me.