Why is jupyter installed in system python3 and not in the installed python 3.11

[andersla]

Is it a deliberate choise to install and run Jupyter in system python3 (3.10 on ubuntu 22.04) and not the fresh installed python 3.11?

From the nightly jupyter build:
RUN |2 PYTHON_VERSION=python3.11 TENSORFLOW_PACKAGE=tf-nightly-cpu /bin/sh -c python3 -m pip install --no-cache-dir -r /jupyter.requirements.txt -U # buildkit