From ArcGIS Pro 2.3, it seems that there is no functionality to edit name of python environment.
How can we change the name of python env?
A solution that possibly work is copying environment with new name from cond command like the link below.
python - How can I rename a conda environment? - Stack Overflow
However, it is a bit cumbersome. Is there any other way to edit the environment name on Pro 2.3?