Installation Notes

If you don't enable Reverse Proxy on Collabora (It's not recommended as it is unsecure), in order for it to work you have to

Remove -o:ssl.termination=true -o:ssl.enable=false from Extra Parameters.
Set Server Name to hostIP:port (The port number you set for NodePort)
Set Service type to NodePort
Set Port type to HTTPS
Disable certificate validation in the app you are going to use it. (eg. Nextcloud have a checkbox under Collabora's URL to disable Cert Validation)