Hi Andreas,
PowerClient has been enhanced a lot since beta. Please refer to the documentation for more information https://docs.appeon.com/pb2019r3/whats_new/PowerClient.html.
The PowerClient App Publisher has been replaced with the new Cloud App Publisher utility.
The Cloud App Publisher utility has options to do deploy to local server or remote server. For local server, it does a file copy. For remote server, it uses FTP or you can generate .ZIP file that you manually copy over if no access to remote server.
We made this change for two key reasons: 1) the installer was just extra overhead as it is simply a file copy, and 2) many customers will want to customize the launcher, which the previous approach didn't support.
Regards
Sally Li