No linux does not have universal binaries, they are seperate.
There is no instance export for linux, i worked on it for a moment but i got into complications, for now you need just the Ctrlr binary and a panel, you need to load it like a panel. I still didn’t get to the point where i can implement an instance export, i need to get into how ELF binaries are built and somehow modify them without using extra libraries (libelf)