Most corporates, last I knew, didn't use Python outside of IT. Devs outside of IT would be using VBA.

However in Financial companies, Python and Excel have always been used together by devs and also quants.

And they tend to use Anaconda, and also like all their other package managers, they would host an in-house package repository and block the public one. That way only approved packages are used, and they only update packages as needed.

Many though have a policy of minimising Excel and rolling out formal platforms whether in-house or off the shelf, as Excel is regarded as a ongoing risk of in-accuracy as full editable at all times, lack of git/version control and so on.