python3-venv missing ensurepip

I believe that I cannot even report this correctly because it appears the problem is in a package called python3-venv, however, launchpad tells me '"python3-venv" does not exist in Ubuntu.' despite it clearly being both installed and recommended by python itself.

When trying to create a python3 virtual environment, I get errors about ensurepip missing, however I have installed python3-venv. The python3-venv package does not include ensurepip:

python3.8 -mvenv .env
The virtual environment was not created successfully because ensurepip is not
available. On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.

    apt-get install python3-venv

You may need to use sudo with that command. After installing the python3-venv
package, recreate your virtual environment.

Failing command: ['/mnt/d/src/.env/bin/python3.8', '-Im', 'ensurepip', '--upgrade', '--default-pip']

This is on Focal Fossa:
Description: Ubuntu 20.04 LTS
Release: 20.04

python3-venv:
  Installed: 3.8.2-0ubuntu2
  Candidate: 3.8.2-0ubuntu2
  Version table:
 *** 3.8.2-0ubuntu2 500
        500 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status