Binary tarballs are not meant to be installed with apt, they're just unpacked. So the correct command would be:
tar xJf ./zoom_x86_64.tar.xz
And to run it:
zoom/ZoomLauncher &
The package for Linux Mint has a strong dependency on systemd, which was removed from Knoppix since Knoppix 8.5.
I may suggest you to download a generic tarball for any distributions which does not depend on systemd:
https://zoom.us/client/latest/zoom_x86_64.tar.xz It may still require to...