You just unzip the bz2 file and then double click the Shotcut.desktop icon. There isn't an install procedure as such.

If you're on Ubuntu or similar, then once you're running it you can right click on the Icon and choose "Lock to launcher"

There is a snap package, does that not work for you?

From the description, that is just the app.. not the dependencies... So the snap doesn't really add anything (other than confinement) compared to the tar.

Thanks, I see. Unfortunately I don't have my Linux machine with. I'll try it later and report my experience.