OpenGL not installed on Ubuntu

I've found PySide v5 really useful for a couple of projects, and I was looking forward to v6. I tried using pip install and then running the [quickstart code|https://doc.qt.io/qtforpython/quickstart.html.] It worked fine on Windows, but on Ubuntu 20.04, I got the error: ImportError: libOpenGL.so.0: cannot open shared object file: No such file or directory

Here's a complete reproduction on a clean VirtualBox install with the latest OS patches:

don@don-VirtualBox:~$ python3 -V
Python 3.8.5
don@don-VirtualBox:~$ python3 -mvenv venv
don@don-VirtualBox:~$ . venv/bin/activate
(venv) don@don-VirtualBox:~$ pip install pyside6
Collecting pyside6
{{ Downloading PySide6-6.0.3-6.0.3-cp36.cp37.cp38.cp39-abi3-manylinux1_x86_64.whl (185.3 MB)}}
{{ |████████████████████████████████| 185.3 MB 22 kB/s }}
Collecting shiboken6==6.0.3
{{ Downloading shiboken6-6.0.3-6.0.3-cp36.cp37.cp38.cp39-abi3-manylinux1_x86_64.whl (983 kB)}}
{{ |████████████████████████████████| 983 kB 4.3 kB/s }}
Installing collected packages: shiboken6, pyside6
Successfully installed pyside6-6.0.3 shiboken6-6.0.3
(venv) don@don-VirtualBox:~$ python -c "from PySide6 import QtWidgets"
Traceback (most recent call last):
{{ File "<string>", line 1, in <module>}}
ImportError: libOpenGL.so.0: cannot open shared object file: No such file or directory
(venv) don@don-VirtualBox:~$

If I install OpenGL with GLUT, then the import error stops, and the quickstart code works.

sudo apt-get install freeglut3 freeglut3-dev

I thought that using pip install pyside6 was supposed to be all the installation your app needs, as it is in Windows. Can a future release include OpenGL, please?