The Open Street Map OSMNX python package is not listed in the Package Manager.
I tried installing the package in the command prompt in the arcgispro python env, and despite doing that, I am unable to import the package.
Clone the arcgispro-py3 package and do a conda install
since it is only available on the conda-forge channel
(your_clone) C:\arc_pro\bin\Python\envs\your_clone>conda install -c conda-forge osmnx