Consider installing miniconda to manage python and other software for you. On my M1 Mac, I do have python installed by default in /usr/bin. It's version 2.7.18 on a Mac with 12.2.1 (Monterey) that is just a symbolic link to the system library framework version. The instructions are shown below for conda.

https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/background_install/miniconda.html#install-miniconda


% which python
/Users/dglen/miniforge3/envs/py39_afni_tiny/bin/python
dglen@Brians-MacBook-Air python_scripts % conda
% where python
/Users/dglen/miniforge3/envs/py39_afni_tiny/bin/python
/usr/bin/python
% /usr/bin/python --version
Python 2.7.18
% ls -l /usr/bin/python
lrwxr-xr-x 1 root wheel 75 Feb 6 16:22 /usr/bin/python -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
% file /usr/bin/python
/usr/bin/python: Mach-O universal binary with 2 architectures: [x86_64:Mach-O 64-bit executable x86_64] [arm64e:Mach-O 64-bit executable arm64e]
/usr/bin/python (for architecture x86_64): Mach-O 64-bit executable x86_64
/usr/bin/python (for architecture arm64e): Mach-O 64-bit executable arm64e