There are specific steps you must follow if you choose to remove Python from your Mac. Here's how to uninstall Python on macOS.

I'll do some more testing, if the intended behaviour is that if I install pymanager, and either don't install 3.14b0 as part of the install, or uninstall it straight afterwards, then the python ...

Python 2.2 combined Win32 extensions This Uninstall Programs entry corresponds to a legitimate program and is unnecessary to remove.

Python 2.2 pywin32 extensions (build 203) This Uninstall Programs entry corresponds to a legitimate program and is unnecessary to remove.