Let’s start over.
The jack on the side of your Macbook may, indeed, be a TRRS connector that works with, for example, the old Apple wired earbud/microphone combo. If that is the case, it should work with the RODE.
Plug in the RODE. Go to Apple (menu) > System Preferences > Sound > Input. Do you see the RODE there? If not, then it won’t work with Audacity (or any other program on your Mac).
If you do see the RODE, follow the instruction in this post.
Now start Audacity and see if you can select the RODE in the Device Toolbar.
– Bill