Converter used to work on Linux, too. The last version to do that was 4.0.1. However it is EOL, not available for download anymore, and supports old versions of guest and host OSes. That's why I didn't recommend it. Linux support might get back in a future release or it might not; this is a question of priorities and decision making.
As for Mac - Fusion can do P2V imports (using Converter internally). However only Windows machines can be imported, running only under Fusion. I assume this is not exactly what you need.
Regards