Do you want to be able to run virtual Linux desktops on the Suse host? If so, you should take a look at the Terminal Server range to start off with: https://www.nomachine.com/comparison-terminal-server-products
Then depending on your choice you can download from here: https://www.nomachine.com/download-enterprise
You can download directly from the website. The guide here provides all the command line instructions to install on Linux: https://www.nomachine.com/DT01L00062
If none of these are for you, then NoMachine for Linux (free to download and install) will give you access to the physical display of the remote host.
For optimal performance., i.e. to take advantage of the functionalities in version 4, you will need version 4 client and server. You mention NX Client which has been superceded. If you are a customer with a support contract for 3.5.0, please contact us via the traditional support channels.