Thanks for the two further clarifications, which I've just read.
Eryk's advice for uninstalling the app distribution got rid of those
unwanted WindowsApps subdirectories painlessly.
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Many thanks for both replies. Everything seems fine now.
Reinstalling the packages using "py" made them available in v3.9.6. So
I could delete them from
C:\Users\...\AppData\Local\Packages\PythonSoftwareFoundationPython.3.8.qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages
In fac
