That is a magnificent achievement. I'm very out of the loop WRT modern windows (we're at 11, not?) but even if it became very unixy, I'd still imagine a lot of work was done to present the data consistently.
tiptop stands on the shoulders of giants here. Textual (for displaying) and psutil (for fetching the data) do a great job, and tiptop's job is more or less down to intercepting some exceptions that occur only on Windows or so.
Looks good! Consider adding instructions to install it with https://github.com/pypa/pipx to not scare people not familiar with python dependency management.
$ pip install tiptop
Let me know what you think!