I have my iMac running 11.6.5 (Big Sur) and it also has MacPorts installed with Python2 *and* Python3 installed under /opt/local/bin/ BUT NOT in the path before /usr/bin/ cos I didn't want to mess up other apps relying on macOS' out-of-the-box Python's. I use the full path to call my own MacPorts versions when needed.
Will Indigo installing Python2/Python3 "for me" (with the proposed new release) mess up my MacPorts' install of my own Pythons? I know it's in a diff path but there is a REASON I chose NOT to install the official python releases...instead choosing MacPorts' versions (chief among which is not running under Rosetta2!)
Thx
Jann