From what I can see the python3-venv package includes /usr/bin/pyvenv as a symlink point to /usr/bin/pyvenv-3.8, which should be supplied by the python3.8-venv package (a dependency of python3-venv), however this file isn't included in the package.
From what I can see the python3-venv package includes /usr/bin/pyvenv as a symlink point to /usr/bin/ pyvenv- 3.8, which should be supplied by the python3.8-venv package (a dependency of python3-venv), however this file isn't included in the package.