I assume the Bootcamp side of this is irrelevant and it's just an issue with Windows.

Yusuf, can you open Powershell and run "py" on its own?

If you've been going there and running "python" and you didn't select to update PATH, you're probably triggering the redirect to install via the Microsoft Store. When you pass that arguments, it fails (correctly) but doesn't print a message (incorrectly - I'm trying to get it fixed). But when you run it interactively it'll jump you to the store page for Python.

You probably just want to use the "py" launcher, since you've installed that way. Or if you install from the Store instead then it'll configure python/python3/python3.8 commands for you.